45 lines
1.0 KiB
LLVM
45 lines
1.0 KiB
LLVM
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; RUN: opt -S -prune-eh -enable-new-pm=0 < %s | FileCheck %s
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; RUN: opt -S -passes='function-attrs,function(simplify-cfg)' < %s | FileCheck %s
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declare void @may_throw()
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; @callee below may be an optimized form of this function, which can
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; throw at runtime (see r265762 for more details):
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;
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; define linkonce_odr void @callee(i32* %ptr) noinline {
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; entry:
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; %val0 = load atomic i32, i32* %ptr unordered, align 4
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; %val1 = load atomic i32, i32* %ptr unordered, align 4
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; %cmp = icmp eq i32 %val0, %val1
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; br i1 %cmp, label %left, label %right
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; left:
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; ret void
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; right:
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; call void @may_throw()
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; ret void
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; }
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define linkonce_odr void @callee(i32* %ptr) noinline {
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ret void
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}
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define i32 @caller(i32* %ptr) personality i32 3 {
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; CHECK-LABEL: @caller(
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; CHECK: invoke void @callee(i32* %ptr)
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; CHECK-NEXT: to label %normal unwind label %unwind
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entry:
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invoke void @callee(i32* %ptr)
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to label %normal unwind label %unwind
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normal:
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ret i32 1
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unwind:
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%res = landingpad { i8*, i32 }
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cleanup
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ret i32 2
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}
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