IR: Support parsing numeric block ids, and emit them in textual output.

Just as as llvm IR supports explicitly specifying numeric value ids
for instructions, and emits them by default in textual output, now do
the same for blocks.

This is a slightly incompatible change in the textual IR format.

Previously, llvm would parse numeric labels as string names. E.g.
  define void @f() {
    br label %"55"
  55:
    ret void
  }
defined a label *named* "55", even without needing to be quoted, while
the reference required quoting. Now, if you intend a block label which
looks like a value number to be a name, you must quote it in the
definition too (e.g. `"55":`).

Previously, llvm would print nameless blocks only as a comment, and
would omit it if there was no predecessor. This could cause confusion
for readers of the IR, just as unnamed instructions did prior to the
addition of "%5 = " syntax, back in 2008 (PR2480).

Now, it will always print a label for an unnamed block, with the
exception of the entry block. (IMO it may be better to print it for
the entry-block as well. However, that requires updating many more
tests.)

Thus, the following is supported, and is the canonical printing:
  define i32 @f(i32, i32) {
    %3 = add i32 %0, %1
    br label %4

  4:
    ret i32 %3
  }

New test cases covering this behavior are added, and other tests
updated as required.

Differential Revision: https://reviews.llvm.org/D58548

llvm-svn: 356789

diff --git a/clang/test/CodeGenCXX/discard-name-values.cpp b/clang/test/CodeGenCXX/discard-name-values.cpp
index d4d7527..aa30dae 100644 (file)
--- a/clang/test/CodeGenCXX/discard-name-values.cpp
+++ b/clang/test/CodeGenCXX/discard-name-values.cpp
@@ -10,7 +10,7 @@ bool test(bool pred) {
   // CHECK: br i1 %pred, label %if.then, label %if.end
 
   if (pred) {
-    // DISCARDVALUE: ; <label>:2:
+    // DISCARDVALUE: 2:
     // DISCARDVALUE-NEXT: tail call void @branch()
     // DISCARDVALUE-NEXT: br label %3
 
@@ -20,7 +20,7 @@ bool test(bool pred) {
     branch();
   }
 
-  // DISCARDVALUE: ; <label>:3:
+  // DISCARDVALUE: 3:
   // DISCARDVALUE-NEXT: ret i1 %0
 
   // CHECK: if.end:

diff --git a/llgo/test/irgen/imports.go b/llgo/test/irgen/imports.go
index ae6498a..c0f9f56 100644 (file)
--- a/llgo/test/irgen/imports.go
+++ b/llgo/test/irgen/imports.go
@@ -13,7 +13,7 @@ var X interface{}
 // CHECK-NEXT: %[[N:.*]] = load i1, i1* @"init$guard"
 // CHECK-NEXT: br i1 %[[N]], label %{{.*}}, label %[[L:.*]]
 
-// CHECK: ; <label>:[[L]]
+// CHECK: [[L]]:
 // CHECK-NEXT: call void @__go_register_gc_roots
 // CHECK-NEXT: store i1 true, i1* @"init$guard"
 // CHECK-NEXT: call void @fmt..import(i8* undef)

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index a43b0ee..66490b8 100644 (file)
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -741,11 +741,13 @@ A function definition contains a list of basic blocks, forming the CFG (Control
 Flow Graph) for the function. Each basic block may optionally start with a label
 (giving the basic block a symbol table entry), contains a list of instructions,
 and ends with a :ref:`terminator <terminators>` instruction (such as a branch or
-function return). If an explicit label is not provided, a block is assigned an
-implicit numbered label, using the next value from the same counter as used for
-unnamed temporaries (:ref:`see above<identifiers>`). For example, if a function
-entry block does not have an explicit label, it will be assigned label "%0",
-then the first unnamed temporary in that block will be "%1", etc.
+function return). If an explicit label name is not provided, a block is assigned
+an implicit numbered label, using the next value from the same counter as used
+for unnamed temporaries (:ref:`see above<identifiers>`). For example, if a
+function entry block does not have an explicit label, it will be assigned label
+"%0", then the first unnamed temporary in that block will be "%1", etc. If a
+numeric label is explicitly specified, it must match the numeric label that
+would be used implicitly.
 
 The first basic block in a function is special in two ways: it is
 immediately executed on entrance to the function, and it is not allowed

diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index 9e5bfb1..bc3776d 100644 (file)
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -1048,7 +1048,17 @@ lltok::Kind LLLexer::LexDigitOrNegative() {
   for (; isdigit(static_cast<unsigned char>(CurPtr[0])); ++CurPtr)
     /*empty*/;
 
-  // Check to see if this really is a label afterall, e.g. "-1:".
+  // Check if this is a fully-numeric label:
+  if (isdigit(TokStart[0]) && CurPtr[0] == ':') {
+    uint64_t Val = atoull(TokStart, CurPtr);
+    ++CurPtr; // Skip the colon.
+    if ((unsigned)Val != Val)
+      Error("invalid value number (too large)!");
+    UIntVal = unsigned(Val);
+    return lltok::LabelID;
+  }
+
+  // Check to see if this really is a string label, e.g. "-1:".
   if (isLabelChar(CurPtr[0]) || CurPtr[0] == ':') {
     if (const char *End = isLabelTail(CurPtr)) {
       StrVal.assign(TokStart, End-1);

diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index 71315f3..1ab2702 100644 (file)
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -2926,13 +2926,27 @@ BasicBlock *LLParser::PerFunctionState::GetBB(unsigned ID, LocTy Loc) {
 /// unnamed.  If there is an error, this returns null otherwise it returns
 /// the block being defined.
 BasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name,
-                                                 LocTy Loc) {
+                                                 int NameID, LocTy Loc) {
   BasicBlock *BB;
-  if (Name.empty())
+  if (Name.empty()) {
+    if (NameID != -1 && unsigned(NameID) != NumberedVals.size()) {
+      P.Error(Loc, "label expected to be numbered '" +
+                       Twine(NumberedVals.size()) + "'");
+      return nullptr;
+    }
     BB = GetBB(NumberedVals.size(), Loc);
-  else
+    if (!BB) {
+      P.Error(Loc, "unable to create block numbered '" +
+                       Twine(NumberedVals.size()) + "'");
+      return nullptr;
+    }
+  } else {
     BB = GetBB(Name, Loc);
-  if (!BB) return nullptr; // Already diagnosed error.
+    if (!BB) {
+      P.Error(Loc, "unable to create block named '" + Name + "'");
+      return nullptr;
+    }
+  }
 
   // Move the block to the end of the function.  Forward ref'd blocks are
   // inserted wherever they happen to be referenced.
@@ -5489,20 +5503,23 @@ bool LLParser::ParseFunctionBody(Function &Fn) {
 }
 
 /// ParseBasicBlock
-///   ::= LabelStr? Instruction*
+///   ::= (LabelStr|LabelID)? Instruction*
 bool LLParser::ParseBasicBlock(PerFunctionState &PFS) {
   // If this basic block starts out with a name, remember it.
   std::string Name;
+  int NameID = -1;
   LocTy NameLoc = Lex.getLoc();
   if (Lex.getKind() == lltok::LabelStr) {
     Name = Lex.getStrVal();
     Lex.Lex();
+  } else if (Lex.getKind() == lltok::LabelID) {
+    NameID = Lex.getUIntVal();
+    Lex.Lex();
   }
 
-  BasicBlock *BB = PFS.DefineBB(Name, NameLoc);
+  BasicBlock *BB = PFS.DefineBB(Name, NameID, NameLoc);
   if (!BB)
-    return Error(NameLoc,
-                 "unable to create block named '" + Name + "'");
+    return true;
 
   std::string NameStr;
 

diff --git a/llvm/lib/AsmParser/LLParser.h b/llvm/lib/AsmParser/LLParser.h
index 95aea0c..452492b 100644 (file)
--- a/llvm/lib/AsmParser/LLParser.h
+++ b/llvm/lib/AsmParser/LLParser.h
@@ -445,7 +445,7 @@ namespace llvm {
       /// DefineBB - Define the specified basic block, which is either named or
       /// unnamed.  If there is an error, this returns null otherwise it returns
       /// the block being defined.
-      BasicBlock *DefineBB(const std::string &Name, LocTy Loc);
+      BasicBlock *DefineBB(const std::string &Name, int NameID, LocTy Loc);
 
       bool resolveForwardRefBlockAddresses();
     };

diff --git a/llvm/lib/AsmParser/LLToken.h b/llvm/lib/AsmParser/LLToken.h
index 50bdf05..80a1eb9 100644 (file)
--- a/llvm/lib/AsmParser/LLToken.h
+++ b/llvm/lib/AsmParser/LLToken.h
@@ -422,6 +422,7 @@ enum Kind {
   kw_varFlags,
 
   // Unsigned Valued tokens (UIntVal).
+  LabelID,    // 42:
   GlobalID,   // @42
   LocalVarID, // %42
   AttrGrpID,  // #42

diff --git a/llvm/lib/IR/AsmWriter.cpp b/llvm/lib/IR/AsmWriter.cpp
index 07dea40..ad6c2c8 100644 (file)
--- a/llvm/lib/IR/AsmWriter.cpp
+++ b/llvm/lib/IR/AsmWriter.cpp
@@ -3482,23 +3482,24 @@ void AssemblyWriter::printArgument(const Argument *Arg, AttributeSet Attrs) {
 
 /// printBasicBlock - This member is called for each basic block in a method.
 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
+  bool IsEntryBlock = BB == &BB->getParent()->getEntryBlock();
   if (BB->hasName()) {              // Print out the label if it exists...
     Out << "\n";
     PrintLLVMName(Out, BB->getName(), LabelPrefix);
     Out << ':';
-  } else if (!BB->use_empty()) {      // Don't print block # of no uses...
-    Out << "\n; <label>:";
+  } else if (!IsEntryBlock) {
+    Out << "\n";
     int Slot = Machine.getLocalSlot(BB);
     if (Slot != -1)
       Out << Slot << ":";
     else
-      Out << "<badref>";
+      Out << "<badref>:";
   }
 
   if (!BB->getParent()) {
     Out.PadToColumn(50);
     Out << "; Error: Block without parent!";
-  } else if (BB != &BB->getParent()->getEntryBlock()) {  // Not the entry block?
+  } else if (!IsEntryBlock) {
     // Output predecessors for the block.
     Out.PadToColumn(50);
     Out << ";";

diff --git a/llvm/test/Analysis/DominanceFrontier/new_pm_test.ll b/llvm/test/Analysis/DominanceFrontier/new_pm_test.ll
index 7ab1fca..c14239c 100644 (file)
--- a/llvm/test/Analysis/DominanceFrontier/new_pm_test.ll
+++ b/llvm/test/Analysis/DominanceFrontier/new_pm_test.ll
@@ -3,48 +3,48 @@
 
 define void @a_linear_impl_fig_1() nounwind {
 0:
-  br label %"1"
+  br label %1
 1:
-  br label %"2"
+  br label %2
 2:
-  br label %"3"
+  br label %3
 3:
-  br i1 1, label %"13", label %"4"
+  br i1 1, label %12, label %4
 4:
-  br i1 1, label %"5", label %"1"
+  br i1 1, label %5, label %1
 5:
-  br i1 1, label %"8", label %"6"
+  br i1 1, label %8, label %6
 6:
-  br i1 1, label %"7", label %"4"
+  br i1 1, label %7, label %4
 7:
   ret void
 8:
-  br i1 1, label %"9", label %"1"
+  br i1 1, label %9, label %1
 9:
-  br label %"10"
+  br label %10
 10:
-  br i1 1, label %"12", label %"11"
+  br i1 1, label %13, label %11
 11:
-  br i1 1, label %"9", label %"8"
-13:
-  br i1 1, label %"2", label %"1"
+  br i1 1, label %9, label %8
 12:
-   switch i32 0, label %"1" [ i32 0, label %"9"
-                              i32 1, label %"8"]
+  br i1 1, label %2, label %1
+13:
+   switch i32 0, label %1 [ i32 0, label %9
+                              i32 1, label %8]
 }
 
 ; CHECK: DominanceFrontier for function: a_linear_impl_fig_1
-; CHECK-DAG:  DomFrontier for BB %"0" is:
-; CHECK-DAG:  DomFrontier for BB %"11" is:   %"{{[8|9]}}" %"{{[8|9]}}"
-; CHECK-DAG:  DomFrontier for BB %"1" is:    %"1"
-; CHECK-DAG:  DomFrontier for BB %"2" is:    %"{{[1|2]}}" %"{{[1|2]}}"
-; CHECK-DAG:  DomFrontier for BB %"3" is:    %"{{[1|2]}}" %"{{[1|2]}}"
-; CHECK-DAG:  DomFrontier for BB %"13" is:   %"{{[1|2]}}" %"{{[1|2]}}"
-; CHECK-DAG:  DomFrontier for BB %"4" is:    %"{{[1|4]}}" %"{{[1|4]}}"
-; CHECK-DAG:  DomFrontier for BB %"5" is:    %"{{[1|4]}}" %"{{[1|4]}}"
-; CHECK-DAG:  DomFrontier for BB %"8" is:    %"{{[1|8]}}" %"{{[1|8]}}"
-; CHECK-DAG:  DomFrontier for BB %"6" is:    %"4"
-; CHECK-DAG:  DomFrontier for BB %"7" is:
-; CHECK-DAG:  DomFrontier for BB %"9" is:    %"{{[1|8|9]}}" %"{{[1|8|9]}}" %"{{[1|8|9]}}"
-; CHECK-DAG:  DomFrontier for BB %"10" is:   %"{{[1|8|9]}}" %"{{[1|8|9]}}" %"{{[1|8|9]}}"
-; CHECK-DAG:  DomFrontier for BB %"12" is:   %"{{[1|8|9]}}" %"{{[1|8|9]}}" %"{{[1|8|9]}}"
+; CHECK-DAG:  DomFrontier for BB %0 is:
+; CHECK-DAG:  DomFrontier for BB %11 is:   %{{[8|9]}} %{{[8|9]}}
+; CHECK-DAG:  DomFrontier for BB %1 is:    %1
+; CHECK-DAG:  DomFrontier for BB %2 is:    %{{[1|2]}} %{{[1|2]}}
+; CHECK-DAG:  DomFrontier for BB %3 is:    %{{[1|2]}} %{{[1|2]}}
+; CHECK-DAG:  DomFrontier for BB %12 is:   %{{[1|2]}} %{{[1|2]}}
+; CHECK-DAG:  DomFrontier for BB %4 is:    %{{[1|4]}} %{{[1|4]}}
+; CHECK-DAG:  DomFrontier for BB %5 is:    %{{[1|4]}} %{{[1|4]}}
+; CHECK-DAG:  DomFrontier for BB %8 is:    %{{[1|8]}} %{{[1|8]}}
+; CHECK-DAG:  DomFrontier for BB %6 is:    %4
+; CHECK-DAG:  DomFrontier for BB %7 is:
+; CHECK-DAG:  DomFrontier for BB %9 is:    %{{[1|8|9]}} %{{[1|8|9]}} %{{[1|8|9]}}
+; CHECK-DAG:  DomFrontier for BB %10 is:   %{{[1|8|9]}} %{{[1|8|9]}} %{{[1|8|9]}}
+; CHECK-DAG:  DomFrontier for BB %13 is:   %{{[1|8|9]}} %{{[1|8|9]}} %{{[1|8|9]}}

diff --git a/llvm/test/Analysis/RegionInfo/cond_loop.ll b/llvm/test/Analysis/RegionInfo/cond_loop.ll
index 2d0c734..7dc311a 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/cond_loop.ll
+++ b/llvm/test/Analysis/RegionInfo/cond_loop.ll
@@ -7,18 +7,18 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @normal_condition() nounwind {
-5:
+"5":
         br label %"0"
 
-0:
+"0":
        br label %"1"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        ret void
-3:
+"3":
        br i1 1, label %"1", label %"4"
-4:
+"4":
         br label %"0"
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/condition_forward_edge.ll b/llvm/test/Analysis/RegionInfo/condition_forward_edge.ll
index 427b71d..cc9a329 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/condition_forward_edge.ll
+++ b/llvm/test/Analysis/RegionInfo/condition_forward_edge.ll
@@ -7,13 +7,13 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br label %"1"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"3"
-3:
+"3":
        ret void
 }
 ; CHECK-NOT: =>

diff --git a/llvm/test/Analysis/RegionInfo/condition_same_exit.ll b/llvm/test/Analysis/RegionInfo/condition_same_exit.ll
index 0499082..f3f443b 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/condition_same_exit.ll
+++ b/llvm/test/Analysis/RegionInfo/condition_same_exit.ll
@@ -7,16 +7,16 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br i1 1, label %"1", label %"4"
 
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"4"
-3:
+"3":
        br label %"4"
-4:
+"4":
        ret void
 }
 ; CHECK-NOT: =>

diff --git a/llvm/test/Analysis/RegionInfo/condition_simple.ll b/llvm/test/Analysis/RegionInfo/condition_simple.ll
index 3b4d527..67bdb50 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/condition_simple.ll
+++ b/llvm/test/Analysis/RegionInfo/condition_simple.ll
@@ -7,15 +7,15 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br label %"1"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"4"
-3:
+"3":
        br label %"4"
-4:
+"4":
        ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop.ll b/llvm/test/Analysis/RegionInfo/infinite_loop.ll
index 4d9057e..35c82ce 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop.ll
@@ -4,16 +4,16 @@
 
 define void @normal_condition() nounwind {
 0:
-       br label %"1"
+       br label %1
 1:
-       br i1 1, label %"2", label %"3"
+       br i1 1, label %2, label %3
 2:
-       br label %"2"
+       br label %2
 3:
-       br label %"4"
+       br label %4
 4:
        ret void
 }
 ; CHECK-NOT: =>
 ; CHECK: [0] 0 => <Function Return>
-; STAT: 1 region - The # of regions
\ No newline at end of file
+; STAT: 1 region - The # of regions

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_2.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_2.ll
index 09feecd..76ecdd8 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_2.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_2.ll
@@ -5,23 +5,23 @@
 ; RUN: opt -regions -print-region-style=rn  -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br label %"1"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"5"
-5:
+"5":
        br i1 1, label %"11", label %"12"
-11:
+"11":
         br label %"6"
-12:
+"12":
         br label %"6"
-6:
+"6":
         br label %"2"
-3:
+"3":
        br label %"4"
-4:
+"4":
        ret void
 }
 ; CHECK-NOT: =>

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_3.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_3.ll
index 00d5551..2b1b643 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_3.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_3.ll
@@ -6,35 +6,35 @@
 ; RUN: opt -regions -print-region-style=rn  -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br label %"7"
-7:
+"7":
        br i1 1, label %"1", label %"8"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"5"
-5:
+"5":
        br i1 1, label %"11", label %"12"
-11:
+"11":
         br label %"6"
-12:
+"12":
         br label %"6"
-6:
+"6":
         br label %"2"
-8:
+"8":
        br label %"9"
-9:
+"9":
        br i1 1, label %"13", label %"14"
-13:
+"13":
         br label %"10"
-14:
+"14":
         br label %"10"
-10:
+"10":
         br label %"8"
-3:
+"3":
        br label %"4"
-4:
+"4":
        ret void
 }
 ; CHECK-NOT: =>

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_4.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_4.ll
index 51d8ffe..c3ad028 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_4.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_4.ll
@@ -5,35 +5,35 @@
 ; RUN: opt -regions -print-region-style=rn  -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
        br label %"7"
-7:
+"7":
        br i1 1, label %"1", label %"8"
-1:
+"1":
        br i1 1, label %"2", label %"3"
-2:
+"2":
        br label %"5"
-5:
+"5":
        br i1 1, label %"11", label %"12"
-11:
+"11":
         br label %"6"
-12:
+"12":
         br label %"6"
-6:
+"6":
        br i1 1, label %"2", label %"10"
-8:
+"8":
        br label %"9"
-9:
+"9":
        br i1 1, label %"13", label %"14"
-13:
+"13":
         br label %"10"
-14:
+"14":
         br label %"10"
-10:
+"10":
         br label %"8"
-3:
+"3":
        br label %"4"
-4:
+"4":
        ret void
 }
 ; CHECK-NOT: =>
@@ -48,4 +48,4 @@ define void @normal_condition() nounwind {
 ; BBIT: 5, 11, 12,
 ; RNIT: 0, 7, 1, 2 => 10, 10, 8, 9, 13, 14, 3, 4,
 ; RNIT: 2, 5 => 6, 6,
-; RNIT: 5, 11, 12,
\ No newline at end of file
+; RNIT: 5, 11, 12,

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_5_a.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_5_a.ll
index 1279641..bf56add 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_5_a.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_5_a.ll
@@ -1,19 +1,19 @@
 ; RUN: opt -regions -analyze < %s | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
     br label %"7"
-7:
+"7":
     br i1 1, label %"1", label %"8"
-1:
+"1":
     br i1 1, label %"6", label %"3"
-6:
+"6":
     br label %"8"
-8:
+"8":
     br label %"8"
-3:
+"3":
     br label %"4"
-4:
+"4":
     ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_5_b.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_5_b.ll
index 9759ea8..d860205 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_5_b.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_5_b.ll
@@ -1,21 +1,21 @@
 ; RUN: opt -regions -analyze < %s | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
     br label %"7"
-7:
+"7":
     br i1 1, label %"1", label %"9"
-9:
+"9":
     br label %"8"
-1:
+"1":
     br i1 1, label %"6", label %"3"
-6:
+"6":
     br label %"9"
-8:
+"8":
     br label %"8"
-3:
+"3":
     br label %"4"
-4:
+"4":
     ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/infinite_loop_5_c.ll b/llvm/test/Analysis/RegionInfo/infinite_loop_5_c.ll
index 51b48c9..0508d0a 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/infinite_loop_5_c.ll
+++ b/llvm/test/Analysis/RegionInfo/infinite_loop_5_c.ll
@@ -1,19 +1,19 @@
 ; RUN: opt -regions -analyze < %s | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
     br label %"7"
-7:
+"7":
     br i1 1, label %"1", label %"8"
-1:
+"1":
     br i1 1, label %"6", label %"3"
-6:
+"6":
     br label %"8"
-8:
+"8":
     br i1 1, label %"8", label %"7"
-3:
+"3":
     br label %"4"
-4:
+"4":
     ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/loop_with_condition.ll b/llvm/test/Analysis/RegionInfo/loop_with_condition.ll
index 527f1fc..244f253 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/loop_with_condition.ll
+++ b/llvm/test/Analysis/RegionInfo/loop_with_condition.ll
@@ -8,25 +8,25 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @normal_condition() nounwind {
-0:
+"0":
         br label %"1"
-1:
+"1":
        br i1 1, label %"6", label %"2"
-2:
+"2":
        br i1 1, label %"3", label %"4"
-3:
+"3":
        br label %"5"
-4:
+"4":
        br label %"5"
-5:
+"5":
         br label %"8"
-8:
+"8":
         br i1 1, label %"7", label %"9"
-9:
+"9":
         br label %"2"
-7:
+"7":
         br label %"6"
-6:
+"6":
        ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/mix_1.ll b/llvm/test/Analysis/RegionInfo/mix_1.ll
index 17b4263..a462119 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/mix_1.ll
+++ b/llvm/test/Analysis/RegionInfo/mix_1.ll
@@ -8,45 +8,45 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @a_linear_impl_fig_1() nounwind {
-0:
+"0":
 
        br i1 1, label %"1", label %"15"
-1:
+"1":
        switch i32 0, label %"2" [ i32 0, label %"3"
                                   i32 1, label %"7"]
-2:
+"2":
        br label %"4"
-3:
+"3":
        br label %"5"
-4:
+"4":
        br label %"6"
-5:
+"5":
        br label %"6"
-6:
+"6":
        br label %"7"
-7:
+"7":
        br label %"15"
-15:
+"15":
        br label %"8"
-8:
+"8":
        br label %"16"
-16:
+"16":
         br label %"9"
-9:
+"9":
        br i1 1, label %"10", label %"11"
-11:
+"11":
        br i1 1, label %"13", label %"12"
-13:
+"13":
        br label %"14"
-12:
+"12":
        br label %"14"
-14:
+"14":
        br label %"8"
-10:
+"10":
         br label %"17"
-17:
+"17":
         br label %"18"
-18:
+"18":
         ret void
 }
 

diff --git a/llvm/test/Analysis/RegionInfo/paper.ll b/llvm/test/Analysis/RegionInfo/paper.ll
index e5c3da7..bc0fb18 100644 (file)
--- a/llvm/test/Analysis/RegionInfo/paper.ll
+++ b/llvm/test/Analysis/RegionInfo/paper.ll
@@ -7,33 +7,33 @@
 ; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
 
 define void @a_linear_impl_fig_1() nounwind {
-0:
+"0":
         br label %"1"
-1:
+"1":
        br label %"2"
-2:
+"2":
        br label %"3"
-3:
+"3":
        br i1 1, label %"13", label %"4"
-4:
+"4":
        br i1 1, label %"5", label %"1"
-5:
+"5":
        br i1 1, label %"8", label %"6"
-6:
+"6":
        br i1 1, label %"7", label %"4"
-7:
+"7":
        ret void
-8:
+"8":
        br i1 1, label %"9", label %"1"
-9:
+"9":
        br label %"10"
-10:
+"10":
        br i1 1, label %"12", label %"11"
-11:
+"11":
        br i1 1, label %"9", label %"8"
-13:
+"13":
        br i1 1, label %"2", label %"1"
-12:
+"12":
        switch i32 0, label %"1" [ i32 0, label %"9"
                                   i32 1, label %"8"]
 }

diff --git a/llvm/test/Assembler/block-labels.ll b/llvm/test/Assembler/block-labels.ll
new file mode 100644 (file)
index 0000000..1dcf496
--- /dev/null
+++ b/llvm/test/Assembler/block-labels.ll
@@ -0,0 +1,48 @@
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s --match-full-lines
+; RUN: verify-uselistorder %s
+
+define i32 @test1(i32 %X) {
+; Implicit entry label. Not printed on output.
+  %1 = alloca i32
+  br label %2
+; Implicit label ids still allowed.
+  br label %3
+3: ; Explicit numeric label
+  br label %"2"
+"2": ; string label, quoted number
+  br label %-3
+-3: ; numeric-looking, but actually string, label
+  br label %-N-
+-N-:
+  br label %$N
+$N:
+  %4 = add i32 1, 1
+  ret i32 %4
+}
+
+; CHECK-LABEL: define i32 @test1(i32 %X) {
+; CHECK-NEXT:   %1 = alloca i32
+; CHECK-NEXT:   br label %2
+; CHECK:      2:       ; preds = %0
+; CHECK-NEXT:   br label %3
+; CHECK:      3:       ; preds = %2
+; CHECK-NEXT:   br label %"2"
+; CHECK:      "2":     ; preds = %3
+; CHECK-NEXT:   br label %-3
+; CHECK:      -3:      ; preds = %"2"
+; CHECK-NEXT:   br label %-N-
+; CHECK:      -N-:     ; preds = %-3
+; CHECK-NEXT:   br label %"$N"
+; CHECK:      "$N":    ; preds = %-N-
+; CHECK-NEXT:   %4 = add i32 1, 1
+; CHECK-NEXT:   ret i32 %4
+; CHECK-NEXT: }
+
+define void @test2(i32, i32) {
+; entry label id still not printed on output
+2:
+  ret void
+}
+
+; CHECK-LABEL: define void @test2(i32, i32) {
+; CHECK-NEXT:    ret void

diff --git a/llvm/test/Assembler/invalid-block-label-num.ll b/llvm/test/Assembler/invalid-block-label-num.ll
new file mode 100644 (file)
index 0000000..4f02300
--- /dev/null
+++ b/llvm/test/Assembler/invalid-block-label-num.ll
@@ -0,0 +1,7 @@
+; RUN: not llvm-as < %s 2>&1 | FileCheck %s
+
+define void @f () {
+1:
+; CHECK: error: label expected to be numbered '0'
+  ret void
+}

diff --git a/llvm/test/CodeGen/X86/atomic-pointer.ll b/llvm/test/CodeGen/X86/atomic-pointer.ll
index 66e0217..54739e2 100644 (file)
--- a/llvm/test/CodeGen/X86/atomic-pointer.ll
+++ b/llvm/test/CodeGen/X86/atomic-pointer.ll
@@ -5,7 +5,7 @@ define i32* @test_atomic_ptr_load(i32** %a0) {
 ; CHECK: movl
 ; CHECK: movl
 ; CHECK: ret
-0:
+entry:
   %0 = load atomic i32*, i32** %a0 seq_cst, align 4
   ret i32* %0
 }
@@ -16,7 +16,7 @@ define void @test_atomic_ptr_store(i32* %a0, i32** %a1) {
 ; CHECK: movl
 ; CHECK: xchgl
 ; CHECK: ret
-0:
-  store atomic i32* %a0, i32** %a1 seq_cst, align 4
+entry:
+store atomic i32* %a0, i32** %a1 seq_cst, align 4
   ret void
 }

diff --git a/llvm/test/Instrumentation/AddressSanitizer/asan-masked-load-store.ll b/llvm/test/Instrumentation/AddressSanitizer/asan-masked-load-store.ll
index ddfd7ca..1b06925 100644 (file)
--- a/llvm/test/Instrumentation/AddressSanitizer/asan-masked-load-store.ll
+++ b/llvm/test/Instrumentation/AddressSanitizer/asan-masked-load-store.ll
@@ -75,39 +75,39 @@ define void @store.v4f32.variable(<4 x float> %arg, <4 x i1> %mask) sanitize_add
   %p = load <4 x float>*, <4 x float>** @v4f32, align 8
 ; STORE: [[MASK0:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 0
 ; STORE: br i1 [[MASK0]], label %[[THEN0:[0-9A-Za-z]+]], label %[[AFTER0:[0-9A-Za-z]+]]
-; STORE: <label>:[[THEN0]]:
+; STORE: [[THEN0]]:
 ; STORE: [[GEP0:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 0
 ; STORE: [[PGEP0:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP0]] to i64
 ; STORE: call void @__asan_store4(i64 [[PGEP0]])
 ; STORE: br label %[[AFTER0]]
-; STORE: <label>:[[AFTER0]]
+; STORE: [[AFTER0]]:
 
 ; STORE: [[MASK1:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 1
 ; STORE: br i1 [[MASK1]], label %[[THEN1:[0-9A-Za-z]+]], label %[[AFTER1:[0-9A-Za-z]+]]
-; STORE: <label>:[[THEN1]]:
+; STORE: [[THEN1]]:
 ; STORE: [[GEP1:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 1
 ; STORE: [[PGEP1:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP1]] to i64
 ; STORE: call void @__asan_store4(i64 [[PGEP1]])
 ; STORE: br label %[[AFTER1]]
-; STORE: <label>:[[AFTER1]]
+; STORE: [[AFTER1]]:
 
 ; STORE: [[MASK2:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 2
 ; STORE: br i1 [[MASK2]], label %[[THEN2:[0-9A-Za-z]+]], label %[[AFTER2:[0-9A-Za-z]+]]
-; STORE: <label>:[[THEN2]]:
+; STORE: [[THEN2]]:
 ; STORE: [[GEP2:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 2
 ; STORE: [[PGEP2:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP2]] to i64
 ; STORE: call void @__asan_store4(i64 [[PGEP2]])
 ; STORE: br label %[[AFTER2]]
-; STORE: <label>:[[AFTER2]]
+; STORE: [[AFTER2]]:
 
 ; STORE: [[MASK3:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 3
 ; STORE: br i1 [[MASK3]], label %[[THEN3:[0-9A-Za-z]+]], label %[[AFTER3:[0-9A-Za-z]+]]
-; STORE: <label>:[[THEN3]]:
+; STORE: [[THEN3]]:
 ; STORE: [[GEP3:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 3
 ; STORE: [[PGEP3:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP3]] to i64
 ; STORE: call void @__asan_store4(i64 [[PGEP3]])
 ; STORE: br label %[[AFTER3]]
-; STORE: <label>:[[AFTER3]]
+; STORE: [[AFTER3]]:
 
 ; STORE: tail call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %arg, <4 x float>* %p, i32 4, <4 x i1> %mask)
   tail call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %arg, <4 x float>* %p, i32 4, <4 x i1> %mask)
@@ -203,39 +203,39 @@ define <4 x float> @load.v4f32.variable(<4 x float> %arg, <4 x i1> %mask) saniti
   %p = load <4 x float>*, <4 x float>** @v4f32, align 8
 ; LOAD: [[MASK0:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 0
 ; LOAD: br i1 [[MASK0]], label %[[THEN0:[0-9A-Za-z]+]], label %[[AFTER0:[0-9A-Za-z]+]]
-; LOAD: <label>:[[THEN0]]:
+; LOAD: [[THEN0]]:
 ; LOAD: [[GEP0:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 0
 ; LOAD: [[PGEP0:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP0]] to i64
 ; LOAD: call void @__asan_load4(i64 [[PGEP0]])
 ; LOAD: br label %[[AFTER0]]
-; LOAD: <label>:[[AFTER0]]
+; LOAD: [[AFTER0]]:
 
 ; LOAD: [[MASK1:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 1
 ; LOAD: br i1 [[MASK1]], label %[[THEN1:[0-9A-Za-z]+]], label %[[AFTER1:[0-9A-Za-z]+]]
-; LOAD: <label>:[[THEN1]]:
+; LOAD: [[THEN1]]:
 ; LOAD: [[GEP1:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 1
 ; LOAD: [[PGEP1:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP1]] to i64
 ; LOAD: call void @__asan_load4(i64 [[PGEP1]])
 ; LOAD: br label %[[AFTER1]]
-; LOAD: <label>:[[AFTER1]]
+; LOAD: [[AFTER1]]:
 
 ; LOAD: [[MASK2:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 2
 ; LOAD: br i1 [[MASK2]], label %[[THEN2:[0-9A-Za-z]+]], label %[[AFTER2:[0-9A-Za-z]+]]
-; LOAD: <label>:[[THEN2]]:
+; LOAD: [[THEN2]]:
 ; LOAD: [[GEP2:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 2
 ; LOAD: [[PGEP2:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP2]] to i64
 ; LOAD: call void @__asan_load4(i64 [[PGEP2]])
 ; LOAD: br label %[[AFTER2]]
-; LOAD: <label>:[[AFTER2]]
+; LOAD: [[AFTER2]]:
 
 ; LOAD: [[MASK3:%[0-9A-Za-z]+]] = extractelement <4 x i1> %mask, i64 3
 ; LOAD: br i1 [[MASK3]], label %[[THEN3:[0-9A-Za-z]+]], label %[[AFTER3:[0-9A-Za-z]+]]
-; LOAD: <label>:[[THEN3]]:
+; LOAD: [[THEN3]]:
 ; LOAD: [[GEP3:%[0-9A-Za-z]+]] = getelementptr <4 x float>, <4 x float>* %p, i64 0, i64 3
 ; LOAD: [[PGEP3:%[0-9A-Za-z]+]] = ptrtoint float* [[GEP3]] to i64
 ; LOAD: call void @__asan_load4(i64 [[PGEP3]])
 ; LOAD: br label %[[AFTER3]]
-; LOAD: <label>:[[AFTER3]]
+; LOAD: [[AFTER3]]:
 
 ; LOAD: tail call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %p, i32 4, <4 x i1> %mask, <4 x float> %arg)
   %res = tail call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %p, i32 4, <4 x i1> %mask, <4 x float> %arg)

diff --git a/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime-be.ll b/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime-be.ll
index 3bdf263..2261094 100644 (file)
--- a/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime-be.ll
+++ b/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime-be.ll
@@ -159,14 +159,14 @@ entry:
 
   ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 40, i8* %zz)
 
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
 
   ; CHECK-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
   ; CHECK-NEXT: call void @__asan_set_shadow_f5(i64 [[OFFSET]], i64 128)
 
   ; CHECK-NOT: add i64 [[SHADOW_BASE]]
 
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
 
   ; 00000000
   ; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
@@ -205,7 +205,7 @@ entry:
   ; CHECK-NOT: add i64 [[SHADOW_BASE]]
 
   ret void
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
   ; CHECK: ret void
 }
 

diff --git a/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime.ll b/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime.ll
index 0799b03..56a6311 100644 (file)
--- a/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime.ll
+++ b/llvm/test/Instrumentation/AddressSanitizer/stack-poisoning-and-lifetime.ll
@@ -159,14 +159,14 @@ entry:
 
   ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 40, i8* %zz)
 
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
 
   ; CHECK-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
   ; CHECK-NEXT: call void @__asan_set_shadow_f5(i64 [[OFFSET]], i64 128)
 
   ; CHECK-NOT: add i64 [[SHADOW_BASE]]
 
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
 
   ; 00000000
   ; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
@@ -205,7 +205,7 @@ entry:
   ; CHECK-NOT: add i64 [[SHADOW_BASE]]
 
   ret void
-  ; CHECK-LABEL: <label>
+  ; CHECK: {{^[0-9]+}}:
   ; CHECK: ret void
 }
 

diff --git a/llvm/test/Instrumentation/AddressSanitizer/stack_dynamic_alloca.ll b/llvm/test/Instrumentation/AddressSanitizer/stack_dynamic_alloca.ll
index 2d3a241..90ddd77 100644 (file)
--- a/llvm/test/Instrumentation/AddressSanitizer/stack_dynamic_alloca.ll
+++ b/llvm/test/Instrumentation/AddressSanitizer/stack_dynamic_alloca.ll
@@ -12,14 +12,14 @@ entry:
 ; CHECK: entry:
 ; CHECK: load i32, i32* @__asan_option_detect_stack_use_after_return
 
-; CHECK: <label>:[[UAR_ENABLED_BB:[0-9]+]]
+; CHECK: [[UAR_ENABLED_BB:^[0-9]+]]:
 ; CHECK: [[FAKE_STACK_RT:%[0-9]+]] = call i64 @__asan_stack_malloc_
 
-; CHECK: <label>:[[FAKE_STACK_BB:[0-9]+]]
+; CHECK: [[FAKE_STACK_BB:^[0-9]+]]:
 ; CHECK: [[FAKE_STACK:%[0-9]+]] = phi i64 [ 0, %entry ], [ [[FAKE_STACK_RT]], %[[UAR_ENABLED_BB]] ]
 ; CHECK: icmp eq i64 [[FAKE_STACK]], 0
 
-; CHECK: <label>:[[NO_FAKE_STACK_BB:[0-9]+]]
+; CHECK: [[NO_FAKE_STACK_BB:^[0-9]+]]:
 ; CHECK: %MyAlloca = alloca i8, i64
 ; CHECK: [[ALLOCA:%[0-9]+]] = ptrtoint i8* %MyAlloca
 

diff --git a/llvm/test/Instrumentation/MemorySanitizer/check_access_address.ll b/llvm/test/Instrumentation/MemorySanitizer/check_access_address.ll
index 8c245fe..7ac6dab 100644 (file)
--- a/llvm/test/Instrumentation/MemorySanitizer/check_access_address.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/check_access_address.ll
@@ -44,9 +44,9 @@ entry:
 ; CHECK-NOT: xor
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: call void @__msan_warning_noreturn
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: xor
 ; CHECK: store
 ; CHECK: store i32 %x

diff --git a/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll b/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll
index 569c232..a42730d 100644 (file)
--- a/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/msan_basic.ll
@@ -39,10 +39,10 @@ entry:
 ; CHECK: store
 ; CHECK-ORIGINS: icmp
 ; CHECK-ORIGINS: br i1
-; CHECK-ORIGINS: <label>
+; CHECK-ORIGINS: {{^[0-9]+}}:
 ; CHECK-ORIGINS: store
 ; CHECK-ORIGINS: br label
-; CHECK-ORIGINS: <label>
+; CHECK-ORIGINS: {{^[0-9]+}}:
 ; CHECK: store
 ; CHECK: ret void
 
@@ -63,10 +63,10 @@ entry:
 ; CHECK: store {{.*}} align 32
 ; CHECK-ORIGINS: icmp
 ; CHECK-ORIGINS: br i1
-; CHECK-ORIGINS: <label>
+; CHECK-ORIGINS: {{^[0-9]+}}:
 ; CHECK-ORIGINS: store {{.*}} align 32
 ; CHECK-ORIGINS: br label
-; CHECK-ORIGINS: <label>
+; CHECK-ORIGINS: {{^[0-9]+}}:
 ; CHECK: store {{.*}} align 32
 ; CHECK: ret void
 

diff --git a/llvm/test/Instrumentation/MemorySanitizer/msan_kernel_basic.ll b/llvm/test/Instrumentation/MemorySanitizer/msan_kernel_basic.ll
index 680a672..870e776 100644 (file)
--- a/llvm/test/Instrumentation/MemorySanitizer/msan_kernel_basic.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/msan_kernel_basic.ll
@@ -40,10 +40,10 @@ entry:
 }
 
 ; CHECK-LABEL: @Store1
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: [[BASE2:%[0-9]+]] = ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; CHECK: [[BASE:%[0-9]+]] = ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; CHECK: [[SHADOW:%[a-z0-9_]+]] = inttoptr {{.*}} [[BASE]]
@@ -51,18 +51,18 @@ entry:
 ; CHECK: load i64, i64* [[SHADOW]]
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_metadata_ptr_for_store_1(i8* %p)
 ; CHECK: store i8
 ; If the new shadow is non-zero, jump to __msan_chain_origin()
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_chain_origin
 ; Storing origin here:
 ; CHECK: store i32
 ; CHECK: br label
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store i8
 ; CHECK: ret void
 
@@ -73,28 +73,28 @@ entry:
 }
 
 ; CHECK-LABEL: @Store2
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: [[REG:%[0-9]+]] = bitcast i16* %p to i8*
 ; CHECK: @__msan_metadata_ptr_for_store_2(i8* [[REG]])
 ; CHECK: store i16
 ; If the new shadow is non-zero, jump to __msan_chain_origin()
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_chain_origin
 ; Storing origin here:
 ; CHECK: store i32
 ; CHECK: br label
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store i16
 ; CHECK: ret void
 
@@ -106,28 +106,28 @@ entry:
 }
 
 ; CHECK-LABEL: @Store4
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i32
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: [[REG:%[0-9]+]] = bitcast i32* %p to i8*
 ; CHECK: @__msan_metadata_ptr_for_store_4(i8* [[REG]])
 ; CHECK: store i32
 ; If the new shadow is non-zero, jump to __msan_chain_origin()
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_chain_origin
 ; Storing origin here:
 ; CHECK: store i32
 ; CHECK: br label
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store i32
 ; CHECK: ret void
 
@@ -138,28 +138,28 @@ entry:
 }
 
 ; CHECK-LABEL: @Store8
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: [[REG:%[0-9]+]] = bitcast i64* %p to i8*
 ; CHECK: @__msan_metadata_ptr_for_store_8(i8* [[REG]])
 ; CHECK: store i64
 ; If the new shadow is non-zero, jump to __msan_chain_origin()
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_chain_origin
 ; Storing origin here:
 ; CHECK: store i32
 ; CHECK: br label
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store i64
 ; CHECK: ret void
 
@@ -170,28 +170,28 @@ entry:
 }
 
 ; CHECK-LABEL: @Store16
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: [[REG:%[0-9]+]] = bitcast i128* %p to i8*
 ; CHECK: @__msan_metadata_ptr_for_store_n(i8* [[REG]], i64 16)
 ; CHECK: store i128
 ; If the new shadow is non-zero, jump to __msan_chain_origin()
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: @__msan_chain_origin
 ; Storing origin here:
 ; CHECK: store i32
 ; CHECK: br label
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store i128
 ; CHECK: ret void
 
@@ -205,16 +205,16 @@ entry:
 }
 
 ; CHECK-LABEL: @Load1
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; Load the value from %p. This is done before accessing the shadow
 ; to ease atomic handling.
 ; CHECK: load i8
@@ -231,16 +231,16 @@ entry:
 }
 
 ; CHECK-LABEL: @Load2
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; Load the value from %p. This is done before accessing the shadow
 ; to ease atomic handling.
 ; CHECK: load i16
@@ -258,16 +258,16 @@ entry:
 }
 
 ; CHECK-LABEL: @Load4
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; Load the value from %p. This is done before accessing the shadow
 ; to ease atomic handling.
 ; CHECK: load i32
@@ -284,16 +284,16 @@ entry:
 }
 
 ; CHECK-LABEL: @Load8
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; Load the value from %p. This is done before accessing the shadow
 ; to ease atomic handling.
 ; CHECK: load i64
@@ -310,16 +310,16 @@ entry:
 }
 
 ; CHECK-LABEL: @Load16
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; Load the shadow of %p and check it
 ; CHECK: load i64
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK-LABEL: <label>
+; CHECK: {{^[0-9]+}}:
 ; Load the value from %p. This is done before accessing the shadow
 ; to ease atomic handling.
 ; CHECK: load i128
@@ -359,7 +359,7 @@ attributes #0 = { "target-features"="+fxsr,+x87,-sse" }
 ; CHECK: [[VA_ARG_ORIGIN:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 3
 ; CHECK: [[VA_ARG_OVERFLOW_SIZE:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 4
 
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: [[OSIZE:%[0-9]+]] = load i64, i64* [[VA_ARG_OVERFLOW_SIZE]]
 ; Register save area is 48 bytes for non-SSE builds.
 ; CHECK: [[SIZE:%[0-9]+]] = add i64 48, [[OSIZE]]
@@ -380,13 +380,13 @@ entry:
 
 ; CHECK-LABEL: @VarArgCaller
 
-; CHECK-LABEL: entry:
+; CHECK: entry:
 ; CHECK: @__msan_get_context_state()
 ; CHECK: [[PARAM_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 0
 ; CHECK: [[VA_ARG_SHADOW:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 2
 ; CHECK: [[VA_ARG_OVERFLOW_SIZE:%[a-z0-9_]+]] = getelementptr {{.*}} i32 0, i32 4
 
-; CHECK-LABEL: entry.split:
+; CHECK: entry.split:
 ; CHECK: [[PARAM_SI:%[_a-z0-9]+]] = ptrtoint {{.*}} [[PARAM_SHADOW]]
 ; CHECK: [[ARG1_S:%[_a-z0-9]+]] = inttoptr i64 [[PARAM_SI]] to i64*
 ; First argument is initialized

diff --git a/llvm/test/Instrumentation/MemorySanitizer/msan_x86_bts_asm.ll b/llvm/test/Instrumentation/MemorySanitizer/msan_x86_bts_asm.ll
index 1c0072f..f46917d 100644 (file)
--- a/llvm/test/Instrumentation/MemorySanitizer/msan_x86_bts_asm.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/msan_x86_bts_asm.ll
@@ -96,6 +96,6 @@ if.else:                                          ; preds = %entry
 ; CHECK: br i1 [[MSCMP]], label %[[IFTRUE:.*]], label {{.*}}
 
 ; If yes, raise a warning.
-; CHECK: <label>:[[IFTRUE]]
+; CHECK: [[IFTRUE]]:
 ; CHECK: call void @__msan_warning
 

diff --git a/llvm/test/Instrumentation/MemorySanitizer/store-origin.ll b/llvm/test/Instrumentation/MemorySanitizer/store-origin.ll
index 9a0c019..ed8d536 100644 (file)
--- a/llvm/test/Instrumentation/MemorySanitizer/store-origin.ll
+++ b/llvm/test/Instrumentation/MemorySanitizer/store-origin.ll
@@ -74,7 +74,7 @@ attributes #1 = { nounwind readnone }
 ; CHECK: store {{.*}}!dbg ![[DBG:[0-9]+]]
 ; CHECK: icmp
 ; CHECK: br i1
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 
 ; Origin tracking level 1: simply store the origin value
 ; CHECK-ORIGINS1: store i32 {{.*}}[[ORIGIN]],{{.*}}!dbg !{{.*}}[[DBG]]
@@ -84,6 +84,6 @@ attributes #1 = { nounwind readnone }
 ; CHECK-ORIGINS2: store i32 {{.*}}[[ORIGIN2]],{{.*}}!dbg !{{.*}}[[DBG]]
 
 ; CHECK: br label{{.*}}!dbg !{{.*}}[[DBG]]
-; CHECK: <label>
+; CHECK: {{^[0-9]+}}:
 ; CHECK: store{{.*}}!dbg !{{.*}}[[DBG]]
 ; CHECK: ret void

diff --git a/llvm/test/Instrumentation/SanitizerCoverage/stack-depth.ll b/llvm/test/Instrumentation/SanitizerCoverage/stack-depth.ll
index 878295c..0c6db1a 100644 (file)
--- a/llvm/test/Instrumentation/SanitizerCoverage/stack-depth.ll
+++ b/llvm/test/Instrumentation/SanitizerCoverage/stack-depth.ll
@@ -29,7 +29,7 @@ entry:
 ; CHECK: [[lowest:%[^ \t]+]] = load [[intType]], [[intType]]* @__sancov_lowest_stack
 ; CHECK: [[cmp:%[^ \t]+]] = icmp ult [[intType]] [[frameInt]], [[lowest]]
 ; CHECK: br i1 [[cmp]], label %[[ifLabel:[^ \t]+]], label
-; CHECK: <label>:[[ifLabel]]:
+; CHECK: [[ifLabel]]:
 ; CHECK: store [[intType]] [[frameInt]], [[intType]]* @__sancov_lowest_stack
 ; CHECK: %call = call i32 @foo()
 ; CHECK: ret i32 %call

diff --git a/llvm/test/Transforms/GVNHoist/pr36787.ll b/llvm/test/Transforms/GVNHoist/pr36787.ll
index 487e2bd..387b3e7 100644 (file)
--- a/llvm/test/Transforms/GVNHoist/pr36787.ll
+++ b/llvm/test/Transforms/GVNHoist/pr36787.ll
@@ -16,58 +16,58 @@ define void @func() personality i8* bitcast (i32 (...)* @gxx_personality to i8*)
   invoke void @f0()
           to label %3 unwind label %1
 
-; <label>:1:
+1:
   %2 = landingpad { i8*, i32 }
           catch i8* bitcast (i8** @g to i8*)
           catch i8* null
   br label %16
 
-; <label>:3:
+3:
   br i1 undef, label %4, label %10
 
-;CHECK:       <label>:4
+;CHECK:       4:
 ;CHECK-NEXT:    %5 = load i32*, i32** undef, align 8
 ;CHECK-NEXT:    invoke void @f1()
 
-; <label>:4:
+4:
   %5 = load i32*, i32** undef, align 8
   invoke void @f1()
           to label %6 unwind label %1
 
-;CHECK:       <label>:6
+;CHECK:       6:
 ;CHECK-NEXT:    %7 = load i32*, i32** undef, align 8
 ;CHECK-NEXT:    %8 = load i32*, i32** undef, align 8
 
-; <label>:6:
+6:
   %7 = load i32*, i32** undef, align 8
   %8 = load i32*, i32** undef, align 8
   br i1 true, label %9, label %17
 
-; <label>:9:
+9:
   invoke void @f0()
           to label %10 unwind label %1
 
-; <label>:10:
+10:
   invoke void @f2()
           to label %11 unwind label %1
 
-; <label>:11:
+11:
   %12 = invoke signext i32 undef(i32* null, i32 signext undef, i1 zeroext undef)
           to label %13 unwind label %14
 
-; <label>:13:
+13:
   unreachable
 
-; <label>:14:
+14:
   %15 = landingpad { i8*, i32 }
           catch i8* bitcast (i8** @g to i8*)
           catch i8* null
   br label %16
 
-; <label>:16:
+16:
   unreachable
 
-; <label>:17:
+17:
   ret void
 
 ; uselistorder directives

diff --git a/llvm/test/Transforms/LowerSwitch/2014-06-23-PHIlowering.ll b/llvm/test/Transforms/LowerSwitch/2014-06-23-PHIlowering.ll
index c6cddf6..24f1d3a 100644 (file)
--- a/llvm/test/Transforms/LowerSwitch/2014-06-23-PHIlowering.ll
+++ b/llvm/test/Transforms/LowerSwitch/2014-06-23-PHIlowering.ll
@@ -2,10 +2,10 @@
 
 define i32 @test(i32 %arg) #0 {
 ; CHECK-LABEL: @test
-; CHECK: ; <label>:2
+; CHECK: 2:
 ; CHECK-NEXT:  %res.0 = phi i32 [ 1, %NodeBlock ], [ 2, %1 ]
 ; CHECK-NEXT:  br label %3
-; CHECK: ; <label>:5
+; CHECK: 5:
 ; CHECK-NEXT:   %res.3 = phi i32 [ 0, %NewDefault ], [ %res.2, %4 ]
 ; CHECK-NEXT:   %6 = add nsw i32 %res.3, 1
 ; CHECK-NEXT:   ret i32 %6
@@ -17,23 +17,23 @@ define i32 @test(i32 %arg) #0 {
     i32 4, label %4
   ]
 
-; <label>:1
+1:
   br label %2
 
-; <label>:2
+2:
   %res.0 = phi i32 [ 1, %0 ], [ 2, %1 ]
   br label %3
 
-; <label>:3
+3:
   %res.1 = phi i32 [ 0, %0 ], [ %res.0, %2 ]
   %phitmp = add nsw i32 %res.1, 2
   br label %4
 
-; <label>:4
+4:
   %res.2 = phi i32 [ 1, %0 ], [ %phitmp, %3 ]
   br label %5
 
-; <label>:5
+5:
   %res.3 = phi i32 [ 0, %0 ], [ %res.2, %4 ]
   %6 = add nsw i32 %res.3, 1
   ret i32 %6