100 lines
2.1 KiB
LLVM
100 lines
2.1 KiB
LLVM
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; RUN: opt -S -hotcoldsplit -hotcoldsplit-threshold=0 < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.14.0"
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; CHECK-LABEL: define {{.*}}@foo(
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; CHECK: landingpad
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; CHECK: sideeffect(i32 2)
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define void @foo(i32 %cond) personality i8 0 {
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entry:
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invoke void @llvm.donothing() to label %normal unwind label %exception
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exception:
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; Note: EH pads are not candidates for region entry points.
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%cleanup = landingpad i8 cleanup
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br label %continue_exception
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continue_exception:
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call void @sideeffect(i32 0)
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call void @sink()
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ret void
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normal:
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call void @sideeffect(i32 2)
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ret void
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}
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; See llvm.org/PR39917. It's currently not safe to outline landingpad
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; instructions.
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;
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; CHECK-LABEL: define {{.*}}@bar(
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; CHECK: landingpad
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define void @bar(i32 %cond) personality i8 0 {
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entry:
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br i1 undef, label %exit, label %continue
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exit:
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ret void
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continue:
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invoke void @sink() to label %normal unwind label %exception
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exception:
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; Note: EH pads are not candidates for region entry points.
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%cleanup = landingpad i8 cleanup
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br label %trivial-eh-handler
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trivial-eh-handler:
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call void @sideeffect(i32 1)
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br label %normal
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normal:
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call void @sideeffect(i32 0)
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ret void
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}
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define void @baz() personality i8 0 {
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entry:
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br i1 undef, label %exit, label %cold1
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exit:
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ret void
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cold1:
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; The predecessor of a cold invoke may still be extracted (see baz.cold.2).
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call void @sideeffect(i32 0)
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br label %cold2
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cold2:
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invoke void @sink() to label %cold3 unwind label %cold4
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cold3:
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; The successor of a cold invoke may still be extracted (see baz.cold.1).
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call void @sideeffect(i32 1)
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ret void
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cold4:
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landingpad i8 cleanup
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ret void
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}
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; CHECK-LABEL: define {{.*}}@foo.cold.1(
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; CHECK: sideeffect(i32 0)
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; CHECK: sink
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; CHECK-LABEL: define {{.*}}@bar.cold.1(
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; CHECK: sideeffect(i32 1)
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; CHECK-LABEL: define {{.*}}@baz.cold.1(
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; CHECK: sideeffect(i32 1)
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; CHECK-LABEL: define {{.*}}@baz.cold.2(
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; CHECK: sideeffect(i32 0)
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declare void @sideeffect(i32)
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declare void @sink() cold
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declare void @llvm.donothing() nounwind readnone
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