41 lines
1.4 KiB
LLVM
41 lines
1.4 KiB
LLVM
; RUN: opt < %s -scalarrepl -S | FileCheck %s
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; PR10987
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; Make sure scalarrepl doesn't move a load across an invoke which could
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; modify the loaded value.
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; (The PHI could theoretically be transformed by splitting the critical
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; edge, but scalarrepl doesn't modify the CFG, at least at the moment.)
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declare void @extern_fn(i32*)
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declare i32 @extern_fn2(i32)
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declare i32 @__gcc_personality_v0(i32, i64, i8*, i8*)
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define void @odd_fn(i1) noinline personality i32 (i32, i64, i8*, i8*)* @__gcc_personality_v0 {
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%retptr1 = alloca i32
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%retptr2 = alloca i32
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br i1 %0, label %then, label %else
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then: ; preds = %2
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invoke void @extern_fn(i32* %retptr1)
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to label %join unwind label %unwind
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else: ; preds = %2
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store i32 3, i32* %retptr2
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br label %join
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join: ; preds = %then, %else
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%storemerge.in = phi i32* [ %retptr2, %else ], [ %retptr1, %then ]
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%storemerge = load i32, i32* %storemerge.in
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%x3 = call i32 @extern_fn2(i32 %storemerge)
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ret void
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unwind: ; preds = %then
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%info = landingpad { i8*, i32 }
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cleanup
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call void @extern_fn(i32* null)
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unreachable
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}
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; CHECK-LABEL: define void @odd_fn(
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; CHECK: %storemerge.in = phi i32* [ %retptr2, %else ], [ %retptr1, %then ]
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