55 lines
1.7 KiB
LLVM
55 lines
1.7 KiB
LLVM
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; RUN: opt < %s -basic-aa -gvn -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-apple-macosx10.7.0"
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; rdar://12801584
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; Value of %shouldExit can be changed by RunInMode.
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; Make sure we do not replace load %shouldExit in while.cond.backedge
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; with a phi node where the value from while.body is 0.
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define i32 @test() nounwind ssp {
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entry:
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; CHECK: test()
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; CHECK: while.body:
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; CHECK: call void @RunInMode
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; CHECK: br i1 %tobool, label %while.cond.backedge, label %if.then
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; CHECK: while.cond.backedge:
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; CHECK: load i32, i32* %shouldExit
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; CHECK: br i1 %cmp, label %while.body
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%shouldExit = alloca i32, align 4
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%tasksIdle = alloca i32, align 4
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store i32 0, i32* %shouldExit, align 4
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store i32 0, i32* %tasksIdle, align 4
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call void @CTestInitialize(i32* %tasksIdle) nounwind
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%0 = load i32, i32* %shouldExit, align 4
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%cmp1 = icmp eq i32 %0, 0
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br i1 %cmp1, label %while.body.lr.ph, label %while.end
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while.body.lr.ph:
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br label %while.body
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while.body:
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call void @RunInMode(i32 100) nounwind
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%1 = load i32, i32* %tasksIdle, align 4
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%tobool = icmp eq i32 %1, 0
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br i1 %tobool, label %while.cond.backedge, label %if.then
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if.then:
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store i32 0, i32* %tasksIdle, align 4
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call void @TimerCreate(i32* %shouldExit) nounwind
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br label %while.cond.backedge
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while.cond.backedge:
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%2 = load i32, i32* %shouldExit, align 4
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%cmp = icmp eq i32 %2, 0
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br i1 %cmp, label %while.body, label %while.cond.while.end_crit_edge
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while.cond.while.end_crit_edge:
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br label %while.end
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while.end:
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ret i32 0
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}
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declare void @CTestInitialize(i32*)
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declare void @RunInMode(i32)
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declare void @TimerCreate(i32*)
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