forked from OSchip/llvm-project
74 lines
1.8 KiB
LLVM
74 lines
1.8 KiB
LLVM
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; RUN: opt -prune-eh -inline -jump-threading -S < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@d = external global i32*, align 8
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define void @fn3(i1 %B) {
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entry:
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br i1 %B, label %if.end, label %if.then
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if.then: ; preds = %entry
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call void @fn2(i1 %B)
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ret void
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if.end: ; preds = %entry
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call void @fn2(i1 %B)
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ret void
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}
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define internal void @fn2(i1 %B) unnamed_addr {
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entry:
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call void @fn1()
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call void @fn1()
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call void @fn1()
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br i1 %B, label %if.end, label %if.then
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if.then:
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unreachable
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if.end:
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unreachable
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}
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; CHECK-LABEL: define internal void @fn2(
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; CHECK: %[[LOAD:.*]] = load i32*, i32** @d, align 8
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; CHECK: %tobool1.i = icmp eq i32* %[[LOAD]], null
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define internal void @fn1() unnamed_addr {
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entry:
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br label %for.body
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for.body: ; preds = %entry
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%0 = load i32*, i32** @d, align 8
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%tobool1 = icmp eq i32* %0, null
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br i1 %tobool1, label %cond.false, label %cond.end
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cond.false: ; preds = %for.body
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call void @__assert_fail(i8* null)
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unreachable
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cond.end: ; preds = %for.body
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%1 = load i32*, i32** @d, align 8
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%cmp = icmp eq i32* %1, null
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br i1 %cmp, label %cond.end4, label %cond.false3
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cond.false3: ; preds = %cond.end
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call void @__assert_fail(i8* null)
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unreachable
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cond.end4: ; preds = %cond.end
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call void @__assert_fail(i8* null)
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unreachable
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for.end: ; No predecessors!
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ret void
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}
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declare void @__assert_fail(i8*)
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; Function Attrs: noreturn nounwind
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declare void @llvm.trap() #0
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attributes #0 = { noreturn nounwind }
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