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cf082ae903
This update was done with the following bash script:
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while read NAME; do
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TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
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llvm-svn: 186268
252 lines
4.6 KiB
LLVM
252 lines
4.6 KiB
LLVM
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
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@a = external global i32 ; <i32*> [#uses=7]
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; CHECK-LABEL: @test1(
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define i32 @test1() nounwind {
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entry:
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%0 = load i32* @a, align 4
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%1 = icmp eq i32 %0, 4
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br i1 %1, label %bb, label %bb1
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bb: ; preds = %entry
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br label %bb8
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bb1: ; preds = %entry
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%2 = load i32* @a, align 4
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%3 = icmp eq i32 %2, 5
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br i1 %3, label %bb2, label %bb3
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bb2: ; preds = %bb1
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br label %bb8
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bb3: ; preds = %bb1
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%4 = load i32* @a, align 4
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%5 = icmp eq i32 %4, 4
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; CHECK: br i1 false, label %bb4, label %bb5
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br i1 %5, label %bb4, label %bb5
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bb4: ; preds = %bb3
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%6 = load i32* @a, align 4
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%7 = add i32 %6, 5
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br label %bb8
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bb5: ; preds = %bb3
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%8 = load i32* @a, align 4
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%9 = icmp eq i32 %8, 5
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; CHECK: br i1 false, label %bb6, label %bb7
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br i1 %9, label %bb6, label %bb7
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bb6: ; preds = %bb5
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%10 = load i32* @a, align 4
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%11 = add i32 %10, 4
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br label %bb8
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bb7: ; preds = %bb5
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%12 = load i32* @a, align 4
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br label %bb8
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bb8: ; preds = %bb7, %bb6, %bb4, %bb2, %bb
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%.0 = phi i32 [ %12, %bb7 ], [ %11, %bb6 ], [ %7, %bb4 ], [ 4, %bb2 ], [ 5, %bb ]
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br label %return
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return: ; preds = %bb8
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ret i32 %.0
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}
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declare void @foo(i1)
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declare void @bar(i32)
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; CHECK-LABEL: @test3(
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define void @test3(i32 %x, i32 %y) {
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%xz = icmp eq i32 %x, 0
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%yz = icmp eq i32 %y, 0
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%z = and i1 %xz, %yz
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br i1 %z, label %both_zero, label %nope
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both_zero:
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call void @foo(i1 %xz)
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; CHECK: call void @foo(i1 true)
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call void @foo(i1 %yz)
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; CHECK: call void @foo(i1 true)
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call void @bar(i32 %x)
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; CHECK: call void @bar(i32 0)
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call void @bar(i32 %y)
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; CHECK: call void @bar(i32 0)
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ret void
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nope:
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call void @foo(i1 %z)
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; CHECK: call void @foo(i1 false)
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ret void
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}
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; CHECK-LABEL: @test4(
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define void @test4(i1 %b, i32 %x) {
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br i1 %b, label %sw, label %case3
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sw:
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switch i32 %x, label %default [
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i32 0, label %case0
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i32 1, label %case1
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i32 2, label %case0
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i32 3, label %case3
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i32 4, label %default
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]
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default:
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; CHECK: default:
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call void @bar(i32 %x)
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; CHECK: call void @bar(i32 %x)
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ret void
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case0:
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; CHECK: case0:
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call void @bar(i32 %x)
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; CHECK: call void @bar(i32 %x)
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ret void
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case1:
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; CHECK: case1:
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call void @bar(i32 %x)
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; CHECK: call void @bar(i32 1)
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ret void
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case3:
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; CHECK: case3:
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call void @bar(i32 %x)
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; CHECK: call void @bar(i32 %x)
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ret void
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}
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; CHECK-LABEL: @test5(
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define i1 @test5(i32 %x, i32 %y) {
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%cmp = icmp eq i32 %x, %y
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br i1 %cmp, label %same, label %different
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same:
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%cmp2 = icmp ne i32 %x, %y
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; CHECK: ret i1 false
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ret i1 %cmp2
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different:
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%cmp3 = icmp eq i32 %x, %y
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; CHECK: ret i1 false
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ret i1 %cmp3
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}
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; CHECK-LABEL: @test6(
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define i1 @test6(i32 %x, i32 %y) {
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%cmp2 = icmp ne i32 %x, %y
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%cmp = icmp eq i32 %x, %y
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%cmp3 = icmp eq i32 %x, %y
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br i1 %cmp, label %same, label %different
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same:
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; CHECK: ret i1 false
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ret i1 %cmp2
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different:
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; CHECK: ret i1 false
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ret i1 %cmp3
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}
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; CHECK-LABEL: @test7(
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define i1 @test7(i32 %x, i32 %y) {
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%cmp = icmp sgt i32 %x, %y
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br i1 %cmp, label %same, label %different
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same:
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%cmp2 = icmp sle i32 %x, %y
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; CHECK: ret i1 false
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ret i1 %cmp2
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different:
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%cmp3 = icmp sgt i32 %x, %y
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; CHECK: ret i1 false
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ret i1 %cmp3
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}
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; CHECK-LABEL: @test8(
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define i1 @test8(i32 %x, i32 %y) {
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%cmp2 = icmp sle i32 %x, %y
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%cmp = icmp sgt i32 %x, %y
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%cmp3 = icmp sgt i32 %x, %y
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br i1 %cmp, label %same, label %different
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same:
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; CHECK: ret i1 false
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ret i1 %cmp2
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different:
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; CHECK: ret i1 false
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ret i1 %cmp3
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}
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; PR1768
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; CHECK-LABEL: @test9(
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define i32 @test9(i32 %i, i32 %j) {
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%cmp = icmp eq i32 %i, %j
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br i1 %cmp, label %cond_true, label %ret
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cond_true:
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%diff = sub i32 %i, %j
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ret i32 %diff
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; CHECK: ret i32 0
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ret:
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ret i32 5
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; CHECK: ret i32 5
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}
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; PR1768
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; CHECK-LABEL: @test10(
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define i32 @test10(i32 %j, i32 %i) {
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%cmp = icmp eq i32 %i, %j
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br i1 %cmp, label %cond_true, label %ret
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cond_true:
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%diff = sub i32 %i, %j
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ret i32 %diff
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; CHECK: ret i32 0
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ret:
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ret i32 5
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; CHECK: ret i32 5
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}
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declare i32 @yogibar()
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; CHECK-LABEL: @test11(
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define i32 @test11(i32 %x) {
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%v0 = call i32 @yogibar()
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%v1 = call i32 @yogibar()
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%cmp = icmp eq i32 %v0, %v1
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br i1 %cmp, label %cond_true, label %next
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cond_true:
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ret i32 %v1
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; CHECK: ret i32 %v0
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next:
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%cmp2 = icmp eq i32 %x, %v0
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br i1 %cmp2, label %cond_true2, label %next2
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cond_true2:
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ret i32 %v0
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; CHECK: ret i32 %x
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next2:
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ret i32 0
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}
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; CHECK-LABEL: @test12(
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define i32 @test12(i32 %x) {
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%cmp = icmp eq i32 %x, 0
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br i1 %cmp, label %cond_true, label %cond_false
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cond_true:
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br label %ret
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cond_false:
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br label %ret
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ret:
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%res = phi i32 [ %x, %cond_true ], [ %x, %cond_false ]
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; CHECK: %res = phi i32 [ 0, %cond_true ], [ %x, %cond_false ]
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ret i32 %res
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}
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