From: Nikita Popov <nikita.ppv@gmail.com>
Date: Mon, 29 Nov 2021 20:28:20 +0000 (+0100)
Subject: [LICM] Regenerate test checks (NFC)
X-Git-Tag: upstream/15.0.7~24573
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=eee035235ebd76b0e1b62f6dec989874a3102233;p=platform%2Fupstream%2Fllvm.git

[LICM] Regenerate test checks (NFC)
---

diff --git a/llvm/test/Transforms/LICM/scalar-promote-memmodel.ll b/llvm/test/Transforms/LICM/scalar-promote-memmodel.ll
index e858a25..c3bae73 100644
--- a/llvm/test/Transforms/LICM/scalar-promote-memmodel.ll
+++ b/llvm/test/Transforms/LICM/scalar-promote-memmodel.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -basic-aa -licm -S | FileCheck %s
 ; RUN: opt -aa-pipeline=tbaa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop-mssa(licm)' -S %s | FileCheck %s
 
@@ -7,6 +8,27 @@
 @g = common global i32 0, align 4
 
 define void @bar(i32 %n, i32 %b) nounwind uwtable ssp {
+; CHECK-LABEL: @bar(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[B:%.*]], 0
+; CHECK-NEXT:    br label [[FOR_COND:%.*]]
+; CHECK:       for.cond:
+; CHECK-NEXT:    [[I_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC5:%.*]], [[FOR_INC:%.*]] ]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[I_0]], [[N:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
+; CHECK:       for.body:
+; CHECK-NEXT:    br i1 [[TOBOOL]], label [[FOR_INC]], label [[IF_THEN:%.*]]
+; CHECK:       if.then:
+; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* @g, align 4
+; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 [[TMP3]], 1
+; CHECK-NEXT:    store i32 [[INC]], i32* @g, align 4
+; CHECK-NEXT:    br label [[FOR_INC]]
+; CHECK:       for.inc:
+; CHECK-NEXT:    [[INC5]] = add nsw i32 [[I_0]], 1
+; CHECK-NEXT:    br label [[FOR_COND]]
+; CHECK:       for.end:
+; CHECK-NEXT:    ret void
+;
 entry:
   br label %for.cond
 
@@ -25,9 +47,6 @@ if.then:                                          ; preds = %for.body
   store i32 %inc, i32* @g, align 4
   br label %for.inc
 
-; CHECK: load i32, i32*
-; CHECK-NEXT: add
-; CHECK-NEXT: store i32
 
 for.inc:                                          ; preds = %for.body, %if.then
   %inc5 = add nsw i32 %i.0, 1
diff --git a/llvm/test/Transforms/LICM/scalar-promote.ll b/llvm/test/Transforms/LICM/scalar-promote.ll
index f2c82b9..290e990 100644
--- a/llvm/test/Transforms/LICM/scalar-promote.ll
+++ b/llvm/test/Transforms/LICM/scalar-promote.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -basic-aa -tbaa -licm -S | FileCheck %s
 ; RUN: opt -aa-pipeline=tbaa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop-mssa(licm)' -S %s | FileCheck %s
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
@@ -5,13 +6,24 @@ target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:1
 @X = global i32 7   ; <i32*> [#uses=4]
 
 define void @test1(i32 %i) {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:  Entry:
+; CHECK-NEXT:    [[X_PROMOTED:%.*]] = load i32, i32* @X, align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[X_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[X2]] = add i32 [[X21]], 1
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Out:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* @X, align 4
+; CHECK-NEXT:    ret void
+;
 Entry:
   br label %Loop
-; CHECK-LABEL: @test1(
-; CHECK: Entry:
-; CHECK-NEXT:   load i32, i32* @X
-; CHECK-NEXT:   br label %Loop
-
 
 Loop:   ; preds = %Loop, %0
   %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]    ; <i32> [#uses=1]
@@ -24,20 +36,24 @@ Loop:   ; preds = %Loop, %0
 
 Out:
   ret void
-; CHECK: Out:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %x2
-; CHECK-NEXT:   store i32 %[[LCSSAPHI]], i32* @X
-; CHECK-NEXT:   ret void
-
 }
 
 define void @test2(i32 %i) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT:  Entry:
+; CHECK-NEXT:    [[DOTPROMOTED:%.*]] = load i32, i32* getelementptr inbounds (i32, i32* @X, i64 1), align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[V1:%.*]] = phi i32 [ [[V:%.*]], [[LOOP]] ], [ [[DOTPROMOTED]], [[ENTRY:%.*]] ]
+; CHECK-NEXT:    [[V]] = add i32 [[V1]], 1
+; CHECK-NEXT:    br i1 false, label [[LOOP]], label [[EXIT:%.*]]
+; CHECK:       Exit:
+; CHECK-NEXT:    [[V_LCSSA:%.*]] = phi i32 [ [[V]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[V_LCSSA]], i32* getelementptr inbounds (i32, i32* @X, i64 1), align 4
+; CHECK-NEXT:    ret void
+;
 Entry:
   br label %Loop
-; CHECK-LABEL: @test2(
-; CHECK: Entry:
-; CHECK-NEXT:    %.promoted = load i32, i32* getelementptr inbounds (i32, i32* @X, i64 1)
-; CHECK-NEXT:    br label %Loop
 
 Loop:   ; preds = %Loop, %0
   %X1 = getelementptr i32, i32* @X, i64 1    ; <i32*> [#uses=1]
@@ -49,39 +65,45 @@ Loop:   ; preds = %Loop, %0
 
 Exit:   ; preds = %Loop
   ret void
-; CHECK: Exit:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %V
-; CHECK-NEXT:   store i32 %[[LCSSAPHI]], i32* getelementptr inbounds (i32, i32* @X, i64 1)
-; CHECK-NEXT:   ret void
 }
 
-
-
 define void @test3(i32 %i) {
 ; CHECK-LABEL: @test3(
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X:%.*]] = load volatile i32, i32* @X, align 4
+; CHECK-NEXT:    [[X2:%.*]] = add i32 [[X]], 1
+; CHECK-NEXT:    store i32 [[X2]], i32* @X, align 4
+; CHECK-NEXT:    br i1 true, label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Out:
+; CHECK-NEXT:    ret void
+;
   br label %Loop
 Loop:
-        ; Should not promote this to a register
+  ; Should not promote this to a register
   %x = load volatile i32, i32* @X
   %x2 = add i32 %x, 1
   store i32 %x2, i32* @X
   br i1 true, label %Out, label %Loop
 
-; CHECK: Loop:
-; CHECK-NEXT: load volatile
-
 Out:    ; preds = %Loop
   ret void
 }
 
+; Should not promote this to a register
 define void @test3b(i32 %i) {
 ; CHECK-LABEL: @test3b(
-; CHECK-LABEL: Loop:
-; CHECK: store volatile
-; CHECK-LABEL: Out:
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X:%.*]] = load i32, i32* @X, align 4
+; CHECK-NEXT:    [[X2:%.*]] = add i32 [[X]], 1
+; CHECK-NEXT:    store volatile i32 [[X2]], i32* @X, align 4
+; CHECK-NEXT:    br i1 true, label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Out:
+; CHECK-NEXT:    ret void
+;
   br label %Loop
 Loop:
-        ; Should not promote this to a register
   %x = load i32, i32* @X
   %x2 = add i32 %x, 1
   store volatile i32 %x2, i32* @X
@@ -92,8 +114,36 @@ Out:    ; preds = %Loop
 }
 
 ; PR8041
+; Should have promoted 'handle2' accesses.
+; Should not have promoted offsetx1 loads.
 define void @test4(i8* %x, i8 %n) {
 ; CHECK-LABEL: @test4(
+; CHECK-NEXT:    [[HANDLE1:%.*]] = alloca i8*, align 8
+; CHECK-NEXT:    [[HANDLE2:%.*]] = alloca i8*, align 8
+; CHECK-NEXT:    store i8* [[X:%.*]], i8** [[HANDLE1]], align 8
+; CHECK-NEXT:    [[TMP:%.*]] = getelementptr i8, i8* [[X]], i64 8
+; CHECK-NEXT:    [[OFFSETX1:%.*]] = load i8*, i8** [[HANDLE1]], align 8
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    br label [[SUBLOOP:%.*]]
+; CHECK:       subloop:
+; CHECK-NEXT:    [[NEWOFFSETX21:%.*]] = phi i8* [ [[TMP]], [[LOOP]] ], [ [[NEWOFFSETX2:%.*]], [[SUBLOOP]] ]
+; CHECK-NEXT:    [[COUNT:%.*]] = phi i8 [ 0, [[LOOP]] ], [ [[NEXTCOUNT:%.*]], [[SUBLOOP]] ]
+; CHECK-NEXT:    store i8 [[N:%.*]], i8* [[NEWOFFSETX21]], align 1
+; CHECK-NEXT:    [[NEWOFFSETX2]] = getelementptr i8, i8* [[NEWOFFSETX21]], i64 -1
+; CHECK-NEXT:    [[NEXTCOUNT]] = add i8 [[COUNT]], 1
+; CHECK-NEXT:    [[INNEREXITCOND:%.*]] = icmp sge i8 [[NEXTCOUNT]], 8
+; CHECK-NEXT:    br i1 [[INNEREXITCOND]], label [[INNEREXIT:%.*]], label [[SUBLOOP]]
+; CHECK:       innerexit:
+; CHECK-NEXT:    [[NEWOFFSETX2_LCSSA:%.*]] = phi i8* [ [[NEWOFFSETX2]], [[SUBLOOP]] ]
+; CHECK-NEXT:    [[VAL:%.*]] = load i8, i8* [[OFFSETX1]], align 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i8 [[VAL]], [[N]]
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[NEWOFFSETX2_LCSSA_LCSSA:%.*]] = phi i8* [ [[NEWOFFSETX2_LCSSA]], [[INNEREXIT]] ]
+; CHECK-NEXT:    store i8* [[NEWOFFSETX2_LCSSA_LCSSA]], i8** [[HANDLE2]], align 8
+; CHECK-NEXT:    ret void
+;
   %handle1 = alloca i8*
   %handle2 = alloca i8*
   store i8* %x, i8** %handle1
@@ -114,38 +164,36 @@ subloop:
   %innerexitcond = icmp sge i8 %nextcount, 8
   br i1 %innerexitcond, label %innerexit, label %subloop
 
-; Should have promoted 'handle2' accesses.
-; CHECK: subloop:
-; CHECK-NEXT: phi i8* [
-; CHECK-NEXT: %count = phi i8 [
-; CHECK-NEXT: store i8 %n
-; CHECK-NOT: store
-; CHECK: br i1
-
 innerexit:
   %offsetx1 = load i8*, i8** %handle1
   %val = load i8, i8* %offsetx1
   %cond = icmp eq i8 %val, %n
   br i1 %cond, label %exit, label %loop
 
-; Should not have promoted offsetx1 loads.
-; CHECK: innerexit:
-; CHECK: %val = load i8, i8* %offsetx1
-; CHECK: %cond = icmp eq i8 %val, %n
-; CHECK: br i1 %cond, label %exit, label %loop
-
 exit:
   ret void
 }
 
 define void @test5(i32 %i, i32** noalias %P2) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:  Entry:
+; CHECK-NEXT:    [[X_PROMOTED:%.*]] = load i32, i32* @X, align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[X_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[X2]] = add i32 [[X21]], 1
+; CHECK-NEXT:    store atomic i32* @X, i32** [[P2:%.*]] monotonic, align 8
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Out:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* @X, align 4
+; CHECK-NEXT:    ret void
+;
 Entry:
   br label %Loop
-; CHECK-LABEL: @test5(
-; CHECK: Entry:
-; CHECK-NEXT:   load i32, i32* @X
-; CHECK-NEXT:   br label %Loop
-
 
 Loop:   ; preds = %Loop, %0
   %j = phi i32 [ 0, %Entry ], [ %Next, %Loop ]    ; <i32> [#uses=1]
@@ -153,7 +201,7 @@ Loop:   ; preds = %Loop, %0
   %x2 = add i32 %x, 1   ; <i32> [#uses=1]
   store i32 %x2, i32* @X
 
-        store atomic i32* @X, i32** %P2 monotonic, align 8
+  store atomic i32* @X, i32** %P2 monotonic, align 8
 
   %Next = add i32 %j, 1   ; <i32> [#uses=2]
   %cond = icmp eq i32 %Next, 0    ; <i1> [#uses=1]
@@ -161,16 +209,36 @@ Loop:   ; preds = %Loop, %0
 
 Out:
   ret void
-; CHECK: Out:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %x2
-; CHECK-NEXT:   store i32 %[[LCSSAPHI]], i32* @X
-; CHECK-NEXT:   ret void
 
 }
 
 
 ; PR14753 - Preserve TBAA tags when promoting values in a loop.
 define void @test6(i32 %n, float* nocapture %a, i32* %gi) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    store i32 0, i32* [[GI:%.*]], align 4, !tbaa [[TBAA0:![0-9]+]]
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i32 0, [[N:%.*]]
+; CHECK-NEXT:    br i1 [[CMP1]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_END:%.*]]
+; CHECK:       for.body.lr.ph:
+; CHECK-NEXT:    [[GI_PROMOTED:%.*]] = load i32, i32* [[GI]], align 4, !tbaa [[TBAA0]]
+; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
+; CHECK:       for.body:
+; CHECK-NEXT:    [[INC1:%.*]] = phi i32 [ [[GI_PROMOTED]], [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT:    [[STOREMERGE2:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC]], [[FOR_BODY]] ]
+; CHECK-NEXT:    [[IDXPROM:%.*]] = sext i32 [[STOREMERGE2]] to i64
+; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[A:%.*]], i64 [[IDXPROM]]
+; CHECK-NEXT:    store float 0.000000e+00, float* [[ARRAYIDX]], align 4, !tbaa [[TBAA4:![0-9]+]]
+; CHECK-NEXT:    [[INC]] = add nsw i32 [[INC1]], 1
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_FOR_END_CRIT_EDGE:%.*]]
+; CHECK:       for.cond.for.end_crit_edge:
+; CHECK-NEXT:    [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[FOR_BODY]] ]
+; CHECK-NEXT:    store i32 [[INC_LCSSA]], i32* [[GI]], align 4, !tbaa [[TBAA0]]
+; CHECK-NEXT:    br label [[FOR_END]]
+; CHECK:       for.end:
+; CHECK-NEXT:    ret void
+;
 entry:
   store i32 0, i32* %gi, align 4, !tbaa !0
   %cmp1 = icmp slt i32 0, %n
@@ -196,11 +264,6 @@ for.cond.for.end_crit_edge:                       ; preds = %for.body
 for.end:                                          ; preds = %for.cond.for.end_crit_edge, %entry
   ret void
 
-; CHECK: for.body.lr.ph:
-; CHECK-NEXT:  %gi.promoted = load i32, i32* %gi, align 4, !tbaa !0
-; CHECK: for.cond.for.end_crit_edge:
-; CHECK-NEXT:  %[[LCSSAPHI:.*]] = phi i32 [ %inc
-; CHECK-NEXT:  store i32 %[[LCSSAPHI]], i32* %gi, align 4, !tbaa !0
 }
 
 declare i32 @opaque(i32) argmemonly
@@ -209,16 +272,24 @@ declare void @capture(i32*)
 ; We can promote even if opaque may throw.
 define i32 @test7() {
 ; CHECK-LABEL: @test7(
-; CHECK: entry:
-; CHECK-NEXT: %local = alloca
-; CHECK-NEXT: call void @capture(i32* %local)
-; CHECK-NEXT: load i32, i32* %local
-; CHECK-NEXT: br label %loop
-; CHECK: exit:
-; CHECK-NEXT: %[[LCSSAPHI:.*]] = phi i32 [ %x2, %loop ]
-; CHECK-NEXT: store i32 %[[LCSSAPHI]], i32* %local
-; CHECK-NEXT: %ret = load i32, i32* %local
-; CHECK-NEXT: ret i32 %ret
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @capture(i32* [[LOCAL]])
+; CHECK-NEXT:    [[LOCAL_PROMOTED:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[LOCAL_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[X2]] = call i32 @opaque(i32 [[X21]])
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* [[LOCAL]], align 4
+; CHECK-NEXT:    [[RET:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %local = alloca i32
   call void @capture(i32* %local)
@@ -241,19 +312,30 @@ exit:
 ; Make sure we don't promote if the store is really control-flow dependent.
 define i32 @test7bad() {
 ; CHECK-LABEL: @test7bad(
-; CHECK: entry:
-; CHECK-NEXT: %local = alloca
-; CHECK-NEXT: call void @capture(i32* %local)
-; CHECK-NEXT: br label %loop
-; CHECK: if:
-; CHECK-NEXT: store i32 %x2, i32* %local
-; CHECK-NEXT: br label %else
-; CHECK: exit:
-; CHECK-NEXT: %ret = load i32, i32* %local
-; CHECK-NEXT: ret i32 %ret
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @capture(i32* [[LOCAL]])
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[NEXT:%.*]], [[ELSE:%.*]] ]
+; CHECK-NEXT:    [[X:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    [[X2:%.*]] = call i32 @opaque(i32 [[X]])
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X2]], 0
+; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE]]
+; CHECK:       if:
+; CHECK-NEXT:    store i32 [[X2]], i32* [[LOCAL]], align 4
+; CHECK-NEXT:    br label [[ELSE]]
+; CHECK:       else:
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[RET:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %local = alloca i32
-  call void @capture(i32* %local)  
+  call void @capture(i32* %local)
   br label %loop
 loop:
   %j = phi i32 [ 0, %entry ], [ %next, %else ]
@@ -262,7 +344,7 @@ loop:
   %cmp = icmp eq i32 %x2, 0
   br i1 %cmp, label %if, label %else
 
-if:  
+if:
   store i32 %x2, i32* %local
   br label %else
 
@@ -281,25 +363,34 @@ exit:
 ; doesn't block us, because %local is always dereferenceable.
 define i32 @test8() {
 ; CHECK-LABEL: @test8(
-; CHECK: entry:
-; CHECK-NEXT: %local = alloca
-; CHECK-NEXT: call void @capture(i32* %local)
-; CHECK-NEXT: load i32, i32* %local
-; CHECK-NEXT: br label %loop
-; CHECK: exit:
-; CHECK-NEXT: %[[LCSSAPHI:.*]] = phi i32 [ %x2, %loop ]
-; CHECK-NEXT: store i32 %[[LCSSAPHI]], i32* %local
-; CHECK-NEXT: %ret = load i32, i32* %local
-; CHECK-NEXT: ret i32 %ret
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @capture(i32* [[LOCAL]])
+; CHECK-NEXT:    [[LOCAL_PROMOTED:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[LOCAL_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[THROWAWAY:%.*]] = call i32 @opaque(i32 [[J]])
+; CHECK-NEXT:    [[X2]] = call i32 @opaque(i32 [[X21]])
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* [[LOCAL]], align 4
+; CHECK-NEXT:    [[RET:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %local = alloca i32
-  call void @capture(i32* %local)  
+  call void @capture(i32* %local)
   br label %loop
 
 loop:
   %j = phi i32 [ 0, %entry ], [ %next, %loop ]
   %throwaway = call i32 @opaque(i32 %j)
-  %x = load i32, i32* %local  
+  %x = load i32, i32* %local
   %x2 = call i32 @opaque(i32 %x)
   store i32 %x2, i32* %local
   %next = add i32 %j, 1
@@ -317,28 +408,42 @@ exit:
 ; dereferenceable
 define i32 @test9() {
 ; CHECK-LABEL: @test9(
-; CHECK: entry:
-; CHECK-NEXT: %local = alloca
-; CHECK-NEXT: call void @capture(i32* %local)
-; CHECK-NEXT: load i32, i32* %local
-; CHECK-NEXT: br label %loop
-; CHECK: exit:
-; CHECK-NEXT: %[[LCSSAPHI:.*]] = phi i32 [ %x2, %else ]
-; CHECK-NEXT: store i32 %[[LCSSAPHI]], i32* %local
-; CHECK-NEXT: %ret = load i32, i32* %local
-; CHECK-NEXT: ret i32 %ret
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @capture(i32* [[LOCAL]])
+; CHECK-NEXT:    [[LOCAL_PROMOTED:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[LOCAL_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[ELSE:%.*]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[ELSE]] ]
+; CHECK-NEXT:    [[J2:%.*]] = call i32 @opaque(i32 [[J]])
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[J2]], 0
+; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE]]
+; CHECK:       if:
+; CHECK-NEXT:    br label [[ELSE]]
+; CHECK:       else:
+; CHECK-NEXT:    [[X2]] = phi i32 [ 0, [[LOOP]] ], [ [[X21]], [[IF]] ]
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[ELSE]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* [[LOCAL]], align 4
+; CHECK-NEXT:    [[RET:%.*]] = load i32, i32* [[LOCAL]], align 4
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %local = alloca i32
-  call void @capture(i32* %local)  
+  call void @capture(i32* %local)
   br label %loop
 
 loop:
-  %j = phi i32 [ 0, %entry ], [ %next, %else ]  
+  %j = phi i32 [ 0, %entry ], [ %next, %else ]
   %j2 = call i32 @opaque(i32 %j)
   %cmp = icmp eq i32 %j2, 0
   br i1 %cmp, label %if, label %else
 
-if:  
+if:
   %x = load i32, i32* %local
   br label %else
 
@@ -356,30 +461,42 @@ exit:
 
 define i32 @test9bad(i32 %i) {
 ; CHECK-LABEL: @test9bad(
-; CHECK: entry:
-; CHECK-NEXT: %local = alloca
-; CHECK-NEXT: call void @capture(i32* %local)
-; CHECK-NEXT: %notderef = getelementptr
-; CHECK-NEXT: br label %loop
-; CHECK: if:
-; CHECK-NEXT: load i32, i32* %notderef
-; CHECK-NEXT: br label %else
-; CHECK: exit:
-; CHECK-NEXT: %ret = load i32, i32* %notderef
-; CHECK-NEXT: ret i32 %ret
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @capture(i32* [[LOCAL]])
+; CHECK-NEXT:    [[NOTDEREF:%.*]] = getelementptr i32, i32* [[LOCAL]], i32 [[I:%.*]]
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[NEXT:%.*]], [[ELSE:%.*]] ]
+; CHECK-NEXT:    [[J2:%.*]] = call i32 @opaque(i32 [[J]])
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[J2]], 0
+; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ELSE]]
+; CHECK:       if:
+; CHECK-NEXT:    [[X:%.*]] = load i32, i32* [[NOTDEREF]], align 4
+; CHECK-NEXT:    br label [[ELSE]]
+; CHECK:       else:
+; CHECK-NEXT:    [[X2:%.*]] = phi i32 [ 0, [[LOOP]] ], [ [[X]], [[IF]] ]
+; CHECK-NEXT:    store i32 [[X2]], i32* [[NOTDEREF]], align 4
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
+; CHECK:       exit:
+; CHECK-NEXT:    [[RET:%.*]] = load i32, i32* [[NOTDEREF]], align 4
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %local = alloca i32
-  call void @capture(i32* %local)  
+  call void @capture(i32* %local)
   %notderef = getelementptr i32, i32* %local, i32 %i
   br label %loop
 
 loop:
-  %j = phi i32 [ 0, %entry ], [ %next, %else ]  
+  %j = phi i32 [ 0, %entry ], [ %next, %else ]
   %j2 = call i32 @opaque(i32 %j)
   %cmp = icmp eq i32 %j2, 0
   br i1 %cmp, label %if, label %else
 
-if:  
+if:
   %x = load i32, i32* %notderef
   br label %else
 
@@ -396,12 +513,24 @@ exit:
 }
 
 define void @test10(i32 %i) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT:  Entry:
+; CHECK-NEXT:    [[X_PROMOTED:%.*]] = load atomic i32, i32* @X unordered, align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[X_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[LOOP]] ]
+; CHECK-NEXT:    [[X2]] = add i32 [[X21]], 1
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Out:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[LOOP]] ]
+; CHECK-NEXT:    store atomic i32 [[X2_LCSSA]], i32* @X unordered, align 4
+; CHECK-NEXT:    ret void
+;
 Entry:
   br label %Loop
-; CHECK-LABEL: @test10(
-; CHECK: Entry:
-; CHECK-NEXT:   load atomic i32, i32* @X unordered, align 4
-; CHECK-NEXT:   br label %Loop
 
 
 Loop:   ; preds = %Loop, %0
@@ -415,22 +544,37 @@ Loop:   ; preds = %Loop, %0
 
 Out:
   ret void
-; CHECK: Out:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %x2
-; CHECK-NEXT:   store atomic i32 %[[LCSSAPHI]], i32* @X unordered, align 4
-; CHECK-NEXT:   ret void
 
 }
 
 ; Early exit is known not to be taken on first iteration and thus doesn't
 ; effect whether load is known to execute.
 define void @test11(i32 %i) {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT:  Entry:
+; CHECK-NEXT:    [[X_PROMOTED:%.*]] = load i32, i32* @X, align 4
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       Loop:
+; CHECK-NEXT:    [[X21:%.*]] = phi i32 [ [[X_PROMOTED]], [[ENTRY:%.*]] ], [ [[X2:%.*]], [[BODY:%.*]] ]
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT:%.*]], [[BODY]] ]
+; CHECK-NEXT:    [[EARLY_TEST:%.*]] = icmp ult i32 [[J]], 32
+; CHECK-NEXT:    br i1 [[EARLY_TEST]], label [[BODY]], label [[EARLY:%.*]]
+; CHECK:       body:
+; CHECK-NEXT:    [[X2]] = add i32 [[X21]], 1
+; CHECK-NEXT:    [[NEXT]] = add i32 [[J]], 1
+; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[NEXT]], 0
+; CHECK-NEXT:    br i1 [[COND]], label [[OUT:%.*]], label [[LOOP]]
+; CHECK:       Early:
+; CHECK-NEXT:    [[X21_LCSSA:%.*]] = phi i32 [ [[X21]], [[LOOP]] ]
+; CHECK-NEXT:    store i32 [[X21_LCSSA]], i32* @X, align 4
+; CHECK-NEXT:    ret void
+; CHECK:       Out:
+; CHECK-NEXT:    [[X2_LCSSA:%.*]] = phi i32 [ [[X2]], [[BODY]] ]
+; CHECK-NEXT:    store i32 [[X2_LCSSA]], i32* @X, align 4
+; CHECK-NEXT:    ret void
+;
 Entry:
   br label %Loop
-; CHECK-LABEL: @test11(
-; CHECK: Entry:
-; CHECK-NEXT:   load i32, i32* @X
-; CHECK-NEXT:   br label %Loop
 
 
 Loop:   ; preds = %Loop, %0
@@ -446,17 +590,9 @@ body:
   br i1 %cond, label %Out, label %Loop
 
 Early:
-; CHECK: Early:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %x2
-; CHECK-NEXT:   store i32 %[[LCSSAPHI]], i32* @X
-; CHECK-NEXT:   ret void
   ret void
 Out:
   ret void
-; CHECK: Out:
-; CHECK-NEXT:   %[[LCSSAPHI:.*]] = phi i32 [ %x2
-; CHECK-NEXT:   store i32 %[[LCSSAPHI]], i32* @X
-; CHECK-NEXT:   ret void
 
 }