From b4a5340be55863c0b2d0ebea92188fb42948bcd1 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov@redhat.com>
Date: Wed, 11 May 2022 12:20:36 +0200
Subject: [PATCH] [IndVarSimplify] Regenerate test checks (NFC)

---
 llvm/test/Transforms/IndVarSimplify/pr45835.ll | 75 +++++++++++++++++++++++---
 1 file changed, 69 insertions(+), 6 deletions(-)

diff --git a/llvm/test/Transforms/IndVarSimplify/pr45835.ll b/llvm/test/Transforms/IndVarSimplify/pr45835.ll
index 01fba87..f9fb50e 100644
--- a/llvm/test/Transforms/IndVarSimplify/pr45835.ll
+++ b/llvm/test/Transforms/IndVarSimplify/pr45835.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -indvars -replexitval=always -S | FileCheck %s --check-prefix=ALWAYS
 ; RUN: opt < %s -indvars -replexitval=never -S | FileCheck %s --check-prefix=NEVER
 ; RUN: opt < %s -indvars -replexitval=cheap -scev-cheap-expansion-budget=1 -S | FileCheck %s --check-prefix=CHEAP
@@ -9,6 +10,72 @@ target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16
 @a = common global i8 0, align 1
 
 define internal fastcc void @d(i8* %c) unnamed_addr #0 {
+; ALWAYS-LABEL: @d(
+; ALWAYS-NEXT:  entry:
+; ALWAYS-NEXT:    [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[C:%.*]], i64 -65535
+; ALWAYS-NEXT:    [[TMP0:%.*]] = icmp ugt i8* [[C]], @a
+; ALWAYS-NEXT:    [[UMAX:%.*]] = select i1 [[TMP0]], i8* [[C]], i8* @a
+; ALWAYS-NEXT:    br label [[WHILE_COND:%.*]]
+; ALWAYS:       while.cond:
+; ALWAYS-NEXT:    br i1 false, label [[CONT:%.*]], label [[WHILE_END_LOOPEXIT:%.*]]
+; ALWAYS:       cont:
+; ALWAYS-NEXT:    switch i64 0, label [[WHILE_COND]] [
+; ALWAYS-NEXT:    i64 -1, label [[HANDLER_POINTER_OVERFLOW_I:%.*]]
+; ALWAYS-NEXT:    i64 0, label [[HANDLER_POINTER_OVERFLOW_I]]
+; ALWAYS-NEXT:    ]
+; ALWAYS:       handler.pointer_overflow.i:
+; ALWAYS-NEXT:    [[A_MUX_LCSSA4:%.*]] = phi i8* [ [[UMAX]], [[CONT]] ], [ [[UMAX]], [[CONT]] ]
+; ALWAYS-NEXT:    [[X5:%.*]] = ptrtoint i8* [[A_MUX_LCSSA4]] to i64
+; ALWAYS-NEXT:    br label [[WHILE_END:%.*]]
+; ALWAYS:       while.end.loopexit:
+; ALWAYS-NEXT:    br label [[WHILE_END]]
+; ALWAYS:       while.end:
+; ALWAYS-NEXT:    ret void
+;
+; NEVER-LABEL: @d(
+; NEVER-NEXT:  entry:
+; NEVER-NEXT:    [[CMP:%.*]] = icmp ule i8* [[C:%.*]], @a
+; NEVER-NEXT:    [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[C]], i64 -65535
+; NEVER-NEXT:    br label [[WHILE_COND:%.*]]
+; NEVER:       while.cond:
+; NEVER-NEXT:    br i1 false, label [[CONT:%.*]], label [[WHILE_END_LOOPEXIT:%.*]]
+; NEVER:       cont:
+; NEVER-NEXT:    [[A_MUX:%.*]] = select i1 [[CMP]], i8* @a, i8* [[C]]
+; NEVER-NEXT:    switch i64 0, label [[WHILE_COND]] [
+; NEVER-NEXT:    i64 -1, label [[HANDLER_POINTER_OVERFLOW_I:%.*]]
+; NEVER-NEXT:    i64 0, label [[HANDLER_POINTER_OVERFLOW_I]]
+; NEVER-NEXT:    ]
+; NEVER:       handler.pointer_overflow.i:
+; NEVER-NEXT:    [[A_MUX_LCSSA4:%.*]] = phi i8* [ [[A_MUX]], [[CONT]] ], [ [[A_MUX]], [[CONT]] ]
+; NEVER-NEXT:    [[X5:%.*]] = ptrtoint i8* [[A_MUX_LCSSA4]] to i64
+; NEVER-NEXT:    br label [[WHILE_END:%.*]]
+; NEVER:       while.end.loopexit:
+; NEVER-NEXT:    br label [[WHILE_END]]
+; NEVER:       while.end:
+; NEVER-NEXT:    ret void
+;
+; CHEAP-LABEL: @d(
+; CHEAP-NEXT:  entry:
+; CHEAP-NEXT:    [[CMP:%.*]] = icmp ule i8* [[C:%.*]], @a
+; CHEAP-NEXT:    [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[C]], i64 -65535
+; CHEAP-NEXT:    br label [[WHILE_COND:%.*]]
+; CHEAP:       while.cond:
+; CHEAP-NEXT:    br i1 false, label [[CONT:%.*]], label [[WHILE_END_LOOPEXIT:%.*]]
+; CHEAP:       cont:
+; CHEAP-NEXT:    [[A_MUX:%.*]] = select i1 [[CMP]], i8* @a, i8* [[C]]
+; CHEAP-NEXT:    switch i64 0, label [[WHILE_COND]] [
+; CHEAP-NEXT:    i64 -1, label [[HANDLER_POINTER_OVERFLOW_I:%.*]]
+; CHEAP-NEXT:    i64 0, label [[HANDLER_POINTER_OVERFLOW_I]]
+; CHEAP-NEXT:    ]
+; CHEAP:       handler.pointer_overflow.i:
+; CHEAP-NEXT:    [[A_MUX_LCSSA4:%.*]] = phi i8* [ [[A_MUX]], [[CONT]] ], [ [[A_MUX]], [[CONT]] ]
+; CHEAP-NEXT:    [[X5:%.*]] = ptrtoint i8* [[A_MUX_LCSSA4]] to i64
+; CHEAP-NEXT:    br label [[WHILE_END:%.*]]
+; CHEAP:       while.end.loopexit:
+; CHEAP-NEXT:    br label [[WHILE_END]]
+; CHEAP:       while.end:
+; CHEAP-NEXT:    ret void
+;
 entry:
   %cmp = icmp ule i8* %c, @a
   %add.ptr = getelementptr inbounds i8, i8* %c, i64 -65535
@@ -20,16 +87,12 @@ while.cond:
 cont:
   %a.mux = select i1 %cmp, i8* @a, i8* %c
   switch i64 0, label %while.cond [
-    i64 -1, label %handler.pointer_overflow.i
-    i64 0, label %handler.pointer_overflow.i
+  i64 -1, label %handler.pointer_overflow.i
+  i64 0, label %handler.pointer_overflow.i
   ]
 
 handler.pointer_overflow.i:
   %a.mux.lcssa4 = phi i8* [ %a.mux, %cont ], [ %a.mux, %cont ]
-; ALWAYS: [ %umax, %cont ], [ %umax, %cont ]
-; NEVER: [ %a.mux, %cont ], [ %a.mux, %cont ]
-; In cheap mode, use either one as long as it's consistent.
-; CHEAP: [ %[[VAL:.*]], %cont ], [ %[[VAL]], %cont ]
   %x5 = ptrtoint i8* %a.mux.lcssa4 to i64
   br label %while.end
 
-- 
2.7.4