From 8396aeb07cddd8ab9a6a154a4ab7ac56fc24bda5 Mon Sep 17 00:00:00 2001
From: Max Kazantsev <mkazantsev@azul.com>
Date: Wed, 31 Mar 2021 18:20:19 +0700
Subject: [PATCH] [Test] Auto-update test checks

---
 llvm/test/Transforms/GVN/condprop.ll | 406 +++++++++++++++++++++++++----------
 1 file changed, 292 insertions(+), 114 deletions(-)

diff --git a/llvm/test/Transforms/GVN/condprop.ll b/llvm/test/Transforms/GVN/condprop.ll
index bb7befc..04ecb3c 100644
--- a/llvm/test/Transforms/GVN/condprop.ll
+++ b/llvm/test/Transforms/GVN/condprop.ll
@@ -1,331 +1,472 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -basic-aa -gvn -S | FileCheck %s
 
 @a = external global i32		; <i32*> [#uses=7]
 
-; CHECK-LABEL: @test1(
 define i32 @test1() nounwind {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[TMP0:%.*]] = load i32, i32* @a, align 4
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 4
+; CHECK-NEXT:    br i1 [[TMP1]], label [[BB:%.*]], label [[BB1:%.*]]
+; CHECK:       bb:
+; CHECK-NEXT:    br label [[BB8:%.*]]
+; CHECK:       bb1:
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP0]], 5
+; CHECK-NEXT:    br i1 [[TMP2]], label [[BB2:%.*]], label [[BB3:%.*]]
+; CHECK:       bb2:
+; CHECK-NEXT:    br label [[BB8]]
+; CHECK:       bb3:
+; CHECK-NEXT:    br i1 false, label [[BB4:%.*]], label [[BB5:%.*]]
+; CHECK:       bb4:
+; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* @a, align 4
+; CHECK-NEXT:    [[TMP4:%.*]] = add i32 [[TMP3]], 5
+; CHECK-NEXT:    br label [[BB8]]
+; CHECK:       bb5:
+; CHECK-NEXT:    br i1 false, label [[BB6:%.*]], label [[BB7:%.*]]
+; CHECK:       bb6:
+; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* @a, align 4
+; CHECK-NEXT:    [[TMP6:%.*]] = add i32 [[TMP5]], 4
+; CHECK-NEXT:    br label [[BB8]]
+; CHECK:       bb7:
+; CHECK-NEXT:    br label [[BB8]]
+; CHECK:       bb8:
+; CHECK-NEXT:    [[DOT0:%.*]] = phi i32 [ [[TMP0]], [[BB7]] ], [ undef, [[BB6]] ], [ undef, [[BB4]] ], [ 4, [[BB2]] ], [ 5, [[BB]] ]
+; CHECK-NEXT:    ret i32 [[DOT0]]
+;
 entry:
-	%0 = load i32, i32* @a, align 4
-	%1 = icmp eq i32 %0, 4
-	br i1 %1, label %bb, label %bb1
+  %0 = load i32, i32* @a, align 4
+  %1 = icmp eq i32 %0, 4
+  br i1 %1, label %bb, label %bb1
 
 bb:		; preds = %entry
-	br label %bb8
+  br label %bb8
 
 bb1:		; preds = %entry
-	%2 = load i32, i32* @a, align 4
-	%3 = icmp eq i32 %2, 5
-	br i1 %3, label %bb2, label %bb3
+  %2 = load i32, i32* @a, align 4
+  %3 = icmp eq i32 %2, 5
+  br i1 %3, label %bb2, label %bb3
 
 bb2:		; preds = %bb1
-	br label %bb8
+  br label %bb8
 
 bb3:		; preds = %bb1
-	%4 = load i32, i32* @a, align 4
-	%5 = icmp eq i32 %4, 4
-; CHECK: br i1 false, label %bb4, label %bb5
-	br i1 %5, label %bb4, label %bb5
+  %4 = load i32, i32* @a, align 4
+  %5 = icmp eq i32 %4, 4
+  br i1 %5, label %bb4, label %bb5
 
 bb4:		; preds = %bb3
-	%6 = load i32, i32* @a, align 4
-	%7 = add i32 %6, 5
-	br label %bb8
+  %6 = load i32, i32* @a, align 4
+  %7 = add i32 %6, 5
+  br label %bb8
 
 bb5:		; preds = %bb3
-	%8 = load i32, i32* @a, align 4
-	%9 = icmp eq i32 %8, 5
-; CHECK: br i1 false, label %bb6, label %bb7
-	br i1 %9, label %bb6, label %bb7
+  %8 = load i32, i32* @a, align 4
+  %9 = icmp eq i32 %8, 5
+  br i1 %9, label %bb6, label %bb7
 
 bb6:		; preds = %bb5
-	%10 = load i32, i32* @a, align 4
-	%11 = add i32 %10, 4
-	br label %bb8
+  %10 = load i32, i32* @a, align 4
+  %11 = add i32 %10, 4
+  br label %bb8
 
 bb7:		; preds = %bb5
-	%12 = load i32, i32* @a, align 4
-	br label %bb8
+  %12 = load i32, i32* @a, align 4
+  br label %bb8
 
 bb8:		; preds = %bb7, %bb6, %bb4, %bb2, %bb
-	%.0 = phi i32 [ %12, %bb7 ], [ %11, %bb6 ], [ %7, %bb4 ], [ 4, %bb2 ], [ 5, %bb ]
-	br label %return
+  %.0 = phi i32 [ %12, %bb7 ], [ %11, %bb6 ], [ %7, %bb4 ], [ 4, %bb2 ], [ 5, %bb ]
+  br label %return
 
 return:		; preds = %bb8
-	ret i32 %.0
+  ret i32 %.0
 }
 
 declare void @foo(i1)
 declare void @bar(i32)
 
-; CHECK-LABEL: @test3(
 define void @test3(i32 %x, i32 %y) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT:    [[XZ:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT:    [[YZ:%.*]] = icmp eq i32 [[Y:%.*]], 0
+; CHECK-NEXT:    [[Z:%.*]] = and i1 [[XZ]], [[YZ]]
+; CHECK-NEXT:    br i1 [[Z]], label [[BOTH_ZERO:%.*]], label [[NOPE:%.*]]
+; CHECK:       both_zero:
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    ret void
+; CHECK:       nope:
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    ret void
+;
   %xz = icmp eq i32 %x, 0
   %yz = icmp eq i32 %y, 0
   %z = and i1 %xz, %yz
   br i1 %z, label %both_zero, label %nope
 both_zero:
   call void @foo(i1 %xz)
-; CHECK: call void @foo(i1 true)
   call void @foo(i1 %yz)
-; CHECK: call void @foo(i1 true)
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 0)
   call void @bar(i32 %y)
-; CHECK: call void @bar(i32 0)
   ret void
 nope:
   call void @foo(i1 %z)
-; CHECK: call void @foo(i1 false)
   ret void
 }
 
-; CHECK-LABEL: @test3_select(
 define void @test3_select(i32 %x, i32 %y) {
+; CHECK-LABEL: @test3_select(
+; CHECK-NEXT:    [[XZ:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT:    [[YZ:%.*]] = icmp eq i32 [[Y:%.*]], 0
+; CHECK-NEXT:    [[Z:%.*]] = select i1 [[XZ]], i1 [[YZ]], i1 false
+; CHECK-NEXT:    br i1 [[Z]], label [[BOTH_ZERO:%.*]], label [[NOPE:%.*]]
+; CHECK:       both_zero:
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    ret void
+; CHECK:       nope:
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    ret void
+;
   %xz = icmp eq i32 %x, 0
   %yz = icmp eq i32 %y, 0
   %z = select i1 %xz, i1 %yz, i1 false
   br i1 %z, label %both_zero, label %nope
 both_zero:
   call void @foo(i1 %xz)
-; CHECK: call void @foo(i1 true)
   call void @foo(i1 %yz)
-; CHECK: call void @foo(i1 true)
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 0)
   call void @bar(i32 %y)
-; CHECK: call void @bar(i32 0)
   ret void
 nope:
   call void @foo(i1 %z)
-; CHECK: call void @foo(i1 false)
   ret void
 }
 
-; CHECK-LABEL: @test3_or(
 define void @test3_or(i32 %x, i32 %y) {
+; CHECK-LABEL: @test3_or(
+; CHECK-NEXT:    [[XZ:%.*]] = icmp ne i32 [[X:%.*]], 0
+; CHECK-NEXT:    [[YZ:%.*]] = icmp ne i32 [[Y:%.*]], 0
+; CHECK-NEXT:    [[Z:%.*]] = or i1 [[XZ]], [[YZ]]
+; CHECK-NEXT:    br i1 [[Z]], label [[NOPE:%.*]], label [[BOTH_ZERO:%.*]]
+; CHECK:       both_zero:
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    ret void
+; CHECK:       nope:
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    ret void
+;
   %xz = icmp ne i32 %x, 0
   %yz = icmp ne i32 %y, 0
   %z = or i1 %xz, %yz
   br i1 %z, label %nope, label %both_zero
 both_zero:
   call void @foo(i1 %xz)
-; CHECK: call void @foo(i1 false)
   call void @foo(i1 %yz)
-; CHECK: call void @foo(i1 false)
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 0)
   call void @bar(i32 %y)
-; CHECK: call void @bar(i32 0)
   ret void
 nope:
   call void @foo(i1 %z)
-; CHECK: call void @foo(i1 true)
   ret void
 }
 
-; CHECK-LABEL: @test3_or_select(
 define void @test3_or_select(i32 %x, i32 %y) {
+; CHECK-LABEL: @test3_or_select(
+; CHECK-NEXT:    [[XZ:%.*]] = icmp ne i32 [[X:%.*]], 0
+; CHECK-NEXT:    [[YZ:%.*]] = icmp ne i32 [[Y:%.*]], 0
+; CHECK-NEXT:    [[Z:%.*]] = select i1 [[XZ]], i1 true, i1 [[YZ]]
+; CHECK-NEXT:    br i1 [[Z]], label [[NOPE:%.*]], label [[BOTH_ZERO:%.*]]
+; CHECK:       both_zero:
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    call void @foo(i1 false)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    call void @bar(i32 0)
+; CHECK-NEXT:    ret void
+; CHECK:       nope:
+; CHECK-NEXT:    call void @foo(i1 true)
+; CHECK-NEXT:    ret void
+;
   %xz = icmp ne i32 %x, 0
   %yz = icmp ne i32 %y, 0
   %z = select i1 %xz, i1 true, i1 %yz
   br i1 %z, label %nope, label %both_zero
 both_zero:
   call void @foo(i1 %xz)
-; CHECK: call void @foo(i1 false)
   call void @foo(i1 %yz)
-; CHECK: call void @foo(i1 false)
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 0)
   call void @bar(i32 %y)
-; CHECK: call void @bar(i32 0)
   ret void
 nope:
   call void @foo(i1 %z)
-; CHECK: call void @foo(i1 true)
   ret void
 }
 
-; CHECK-LABEL: @test4(
 define void @test4(i1 %b, i32 %x) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT:    br i1 [[B:%.*]], label [[SW:%.*]], label [[CASE3:%.*]]
+; CHECK:       sw:
+; CHECK-NEXT:    switch i32 [[X:%.*]], label [[DEFAULT:%.*]] [
+; CHECK-NEXT:    i32 0, label [[CASE0:%.*]]
+; CHECK-NEXT:    i32 1, label [[CASE1:%.*]]
+; CHECK-NEXT:    i32 2, label [[CASE0]]
+; CHECK-NEXT:    i32 3, label [[CASE3]]
+; CHECK-NEXT:    i32 4, label [[DEFAULT]]
+; CHECK-NEXT:    ]
+; CHECK:       default:
+; CHECK-NEXT:    call void @bar(i32 [[X]])
+; CHECK-NEXT:    ret void
+; CHECK:       case0:
+; CHECK-NEXT:    call void @bar(i32 [[X]])
+; CHECK-NEXT:    ret void
+; CHECK:       case1:
+; CHECK-NEXT:    call void @bar(i32 1)
+; CHECK-NEXT:    ret void
+; CHECK:       case3:
+; CHECK-NEXT:    call void @bar(i32 [[X]])
+; CHECK-NEXT:    ret void
+;
   br i1 %b, label %sw, label %case3
 sw:
   switch i32 %x, label %default [
-    i32 0, label %case0
-    i32 1, label %case1
-    i32 2, label %case0
-    i32 3, label %case3
-    i32 4, label %default
+  i32 0, label %case0
+  i32 1, label %case1
+  i32 2, label %case0
+  i32 3, label %case3
+  i32 4, label %default
   ]
 default:
-; CHECK: default:
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 %x)
   ret void
 case0:
-; CHECK: case0:
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 %x)
   ret void
 case1:
-; CHECK: case1:
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 1)
   ret void
 case3:
-; CHECK: case3:
   call void @bar(i32 %x)
-; CHECK: call void @bar(i32 %x)
   ret void
 }
 
-; CHECK-LABEL: @test5(
 define i1 @test5(i32 %x, i32 %y) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp = icmp eq i32 %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
   %cmp2 = icmp ne i32 %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
   %cmp3 = icmp eq i32 %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test6(
 define i1 @test6(i32 %x, i32 %y) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp ne i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp2 = icmp ne i32 %x, %y
   %cmp = icmp eq i32 %x, %y
   %cmp3 = icmp eq i32 %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test6_fp(
 define i1 @test6_fp(float %x, float %y) {
+; CHECK-LABEL: @test6_fp(
+; CHECK-NEXT:    [[CMP2:%.*]] = fcmp une float [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[X]], [[Y]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp2 = fcmp une float %x, %y
   %cmp = fcmp oeq float %x, %y
   %cmp3 = fcmp oeq float  %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test7(
 define i1 @test7(i32 %x, i32 %y) {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp = icmp sgt i32 %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
   %cmp2 = icmp sle i32 %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
   %cmp3 = icmp sgt i32 %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test7_fp(
 define i1 @test7_fp(float %x, float %y) {
+; CHECK-LABEL: @test7_fp(
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp ogt float [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp = fcmp ogt float %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
   %cmp2 = fcmp ule float %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
   %cmp3 = fcmp ogt float %x, %y
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test8(
 define i1 @test8(i32 %x, i32 %y) {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp sle i32 [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[X]], [[Y]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp2 = icmp sle i32 %x, %y
   %cmp = icmp sgt i32 %x, %y
   %cmp3 = icmp sgt i32 %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
-; CHECK-LABEL: @test8_fp(
 define i1 @test8_fp(float %x, float %y) {
+; CHECK-LABEL: @test8_fp(
+; CHECK-NEXT:    [[CMP2:%.*]] = fcmp ule float [[X:%.*]], [[Y:%.*]]
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp ogt float [[X]], [[Y]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]]
+; CHECK:       same:
+; CHECK-NEXT:    ret i1 false
+; CHECK:       different:
+; CHECK-NEXT:    ret i1 false
+;
   %cmp2 = fcmp ule float %x, %y
   %cmp = fcmp ogt float %x, %y
   %cmp3 = fcmp ogt float %x, %y
   br i1 %cmp, label %same, label %different
 
 same:
-; CHECK: ret i1 false
   ret i1 %cmp2
 
 different:
-; CHECK: ret i1 false
   ret i1 %cmp3
 }
 
 ; PR1768
-; CHECK-LABEL: @test9(
 define i32 @test9(i32 %i, i32 %j) {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[I:%.*]], [[J:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[RET:%.*]]
+; CHECK:       cond_true:
+; CHECK-NEXT:    ret i32 0
+; CHECK:       ret:
+; CHECK-NEXT:    ret i32 5
+;
   %cmp = icmp eq i32 %i, %j
   br i1 %cmp, label %cond_true, label %ret
 
 cond_true:
   %diff = sub i32 %i, %j
   ret i32 %diff
-; CHECK: ret i32 0
 
 ret:
   ret i32 5
-; CHECK: ret i32 5
 }
 
 ; PR1768
-; CHECK-LABEL: @test10(
 define i32 @test10(i32 %j, i32 %i) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[I:%.*]], [[J:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[RET:%.*]]
+; CHECK:       cond_true:
+; CHECK-NEXT:    ret i32 0
+; CHECK:       ret:
+; CHECK-NEXT:    ret i32 5
+;
   %cmp = icmp eq i32 %i, %j
   br i1 %cmp, label %cond_true, label %ret
 
 cond_true:
   %diff = sub i32 %i, %j
   ret i32 %diff
-; CHECK: ret i32 0
 
 ret:
   ret i32 5
-; CHECK: ret i32 5
 }
 
 declare i32 @yogibar()
 
-; CHECK-LABEL: @test11(
 define i32 @test11(i32 %x) {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT:    [[V0:%.*]] = call i32 @yogibar()
+; CHECK-NEXT:    [[V1:%.*]] = call i32 @yogibar()
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[V0]], [[V1]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[NEXT:%.*]]
+; CHECK:       cond_true:
+; CHECK-NEXT:    ret i32 [[V0]]
+; CHECK:       next:
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp eq i32 [[X:%.*]], [[V0]]
+; CHECK-NEXT:    br i1 [[CMP2]], label [[COND_TRUE2:%.*]], label [[NEXT2:%.*]]
+; CHECK:       cond_true2:
+; CHECK-NEXT:    ret i32 [[X]]
+; CHECK:       next2:
+; CHECK-NEXT:    ret i32 0
+;
   %v0 = call i32 @yogibar()
   %v1 = call i32 @yogibar()
   %cmp = icmp eq i32 %v0, %v1
@@ -333,7 +474,6 @@ define i32 @test11(i32 %x) {
 
 cond_true:
   ret i32 %v1
-; CHECK: ret i32 %v0
 
 next:
   %cmp2 = icmp eq i32 %x, %v0
@@ -341,14 +481,23 @@ next:
 
 cond_true2:
   ret i32 %v0
-; CHECK: ret i32 %x
 
 next2:
   ret i32 0
 }
 
-; CHECK-LABEL: @test12(
 define i32 @test12(i32 %x) {
+; CHECK-LABEL: @test12(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0
+; CHECK-NEXT:    br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
+; CHECK:       cond_true:
+; CHECK-NEXT:    br label [[RET:%.*]]
+; CHECK:       cond_false:
+; CHECK-NEXT:    br label [[RET]]
+; CHECK:       ret:
+; CHECK-NEXT:    [[RES:%.*]] = phi i32 [ 0, [[COND_TRUE]] ], [ [[X]], [[COND_FALSE]] ]
+; CHECK-NEXT:    ret i32 [[RES]]
+;
   %cmp = icmp eq i32 %x, 0
   br i1 %cmp, label %cond_true, label %cond_false
 
@@ -360,33 +509,44 @@ cond_false:
 
 ret:
   %res = phi i32 [ %x, %cond_true ], [ %x, %cond_false ]
-; CHECK: %res = phi i32 [ 0, %cond_true ], [ %x, %cond_false ]
   ret i32 %res
 }
 
 ; On the path from entry->if->end we know that ptr1==ptr2, so we can determine
 ; that gep2 does not alias ptr1 on that path (as it would require that
 ; ptr2==ptr2+2), so we can perform PRE of the load.
-; CHECK-LABEL: @test13
 define i32 @test13(i32* %ptr1, i32* %ptr2) {
-; CHECK-LABEL: entry:
+; CHECK-LABEL: @test13(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[GEP1:%.*]] = getelementptr i32, i32* [[PTR2:%.*]], i32 1
+; CHECK-NEXT:    [[GEP2:%.*]] = getelementptr i32, i32* [[PTR2]], i32 2
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32* [[PTR1:%.*]], [[PTR2]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[IF:%.*]], label [[ENTRY_END_CRIT_EDGE:%.*]]
+; CHECK:       entry.end_crit_edge:
+; CHECK-NEXT:    [[VAL2_PRE:%.*]] = load i32, i32* [[GEP2]], align 4
+; CHECK-NEXT:    br label [[END:%.*]]
+; CHECK:       if:
+; CHECK-NEXT:    [[VAL1:%.*]] = load i32, i32* [[GEP2]], align 4
+; CHECK-NEXT:    br label [[END]]
+; CHECK:       end:
+; CHECK-NEXT:    [[VAL2:%.*]] = phi i32 [ [[VAL1]], [[IF]] ], [ [[VAL2_PRE]], [[ENTRY_END_CRIT_EDGE]] ]
+; CHECK-NEXT:    [[PHI1:%.*]] = phi i32* [ [[PTR2]], [[IF]] ], [ [[GEP1]], [[ENTRY_END_CRIT_EDGE]] ]
+; CHECK-NEXT:    [[PHI2:%.*]] = phi i32 [ [[VAL1]], [[IF]] ], [ 0, [[ENTRY_END_CRIT_EDGE]] ]
+; CHECK-NEXT:    store i32 0, i32* [[PHI1]], align 4
+; CHECK-NEXT:    [[RET:%.*]] = add i32 [[PHI2]], [[VAL2]]
+; CHECK-NEXT:    ret i32 [[RET]]
+;
 entry:
   %gep1 = getelementptr i32, i32* %ptr2, i32 1
   %gep2 = getelementptr i32, i32* %ptr2, i32 2
   %cmp = icmp eq i32* %ptr1, %ptr2
   br i1 %cmp, label %if, label %end
 
-; CHECK: [[CRIT_EDGE:.*]]:
-; CHECK: %[[PRE:.*]] = load i32, i32* %gep2, align 4
 
-; CHECK-LABEL: if:
 if:
   %val1 = load i32, i32* %gep2, align 4
   br label %end
 
-; CHECK-LABEL: end:
-; CHECK: %val2 = phi i32 [ %val1, %if ], [ %[[PRE]], %[[CRIT_EDGE]] ]
-; CHECK-NOT: load
 end:
   %phi1 = phi i32* [ %ptr1, %if ], [ %gep1, %entry ]
   %phi2 = phi i32 [ %val1, %if ], [ 0, %entry ]
@@ -396,31 +556,49 @@ end:
   ret i32 %ret
 }
 
-; CHECK-LABEL: @test14
 define void @test14(i32* %ptr1, i32* noalias %ptr2) {
+; CHECK-LABEL: @test14(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[GEP1:%.*]] = getelementptr inbounds i32, i32* [[PTR1:%.*]], i32 1
+; CHECK-NEXT:    [[GEP2:%.*]] = getelementptr inbounds i32, i32* [[PTR1]], i32 2
+; CHECK-NEXT:    br label [[LOOP:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    br i1 undef, label [[LOOP_IF1_CRIT_EDGE:%.*]], label [[THEN:%.*]]
+; CHECK:       loop.if1_crit_edge:
+; CHECK-NEXT:    [[VAL2_PRE:%.*]] = load i32, i32* [[GEP2]], align 4
+; CHECK-NEXT:    br label [[IF1:%.*]]
+; CHECK:       if1:
+; CHECK-NEXT:    [[VAL2:%.*]] = phi i32 [ [[VAL2_PRE]], [[LOOP_IF1_CRIT_EDGE]] ], [ [[VAL3:%.*]], [[LOOP_END:%.*]] ]
+; CHECK-NEXT:    store i32 [[VAL2]], i32* [[GEP2]], align 4
+; CHECK-NEXT:    store i32 0, i32* [[GEP1]], align 4
+; CHECK-NEXT:    br label [[THEN]]
+; CHECK:       then:
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32* [[GEP2]], [[PTR2:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[LOOP_END]], label [[IF2:%.*]]
+; CHECK:       if2:
+; CHECK-NEXT:    br label [[LOOP_END]]
+; CHECK:       loop.end:
+; CHECK-NEXT:    [[PHI3:%.*]] = phi i32* [ [[PTR2]], [[THEN]] ], [ [[PTR1]], [[IF2]] ]
+; CHECK-NEXT:    [[VAL3]] = load i32, i32* [[GEP2]], align 4
+; CHECK-NEXT:    store i32 [[VAL3]], i32* [[PHI3]], align 4
+; CHECK-NEXT:    br i1 undef, label [[LOOP]], label [[IF1]]
+;
 entry:
   %gep1 = getelementptr inbounds i32, i32* %ptr1, i32 1
   %gep2 = getelementptr inbounds i32, i32* %ptr1, i32 2
   br label %loop
 
-; CHECK-LABEL: loop:
 loop:
   %phi1 = phi i32* [ %gep3, %loop.end ], [ %gep1, %entry ]
   br i1 undef, label %if1, label %then
 
-; CHECK: [[CRIT_EDGE:.*]]:
-; CHECK: %[[PRE:.*]] = load i32, i32* %gep2, align 4
 
-; CHECK-LABEL: if1:
-; CHECK: %val2 = phi i32 [ %[[PRE]], %[[CRIT_EDGE]] ], [ %val3, %loop.end ]
-; CHECK-NOT: load
 if1:
   %val2 = load i32, i32* %gep2, align 4
   store i32 %val2, i32* %gep2, align 4
   store i32 0, i32* %phi1, align 4
   br label %then
 
-; CHECK-LABEL: then:
 then:
   %cmp = icmp eq i32* %gep2, %ptr2
   br i1 %cmp, label %loop.end, label %if2
-- 
2.7.4