46 lines
1.6 KiB
LLVM
46 lines
1.6 KiB
LLVM
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;; Tests for invalid path cloning with -basic-block-sections involving indirect branches.
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declare void @effect(i32 zeroext)
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;; Test failed application of path cloning for paths with indirect branches.
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; RUN: echo 'v1' > %t1
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; RUN: echo 'f bar' >> %t1
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; RUN: echo 'p 0 1 2' >> %t1
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; RUN: echo 'c 0 1.1 2.1 1' >> %t1
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; RUN: llc < %s -mtriple=x86_64-pc-linux -O0 -function-sections -basic-block-sections=%t1 2> %t1.err | FileCheck %s
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; RUN: FileCheck %s --check-prefix=WARN < %t1.err
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; RUN: echo 'v1' > %t2
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; RUN: echo 'f bar' >> %t2
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; RUN: echo 'p 1 2' >> %t2
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; RUN: echo 'c 0 1 2.1' >> %t2
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; RUN: llc < %s -mtriple=x86_64-pc-linux -O0 -function-sections -basic-block-sections=%t2 2> %t2.err | FileCheck %s
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; RUN: FileCheck %s --check-prefix=WARN < %t2.err
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define void @bar(i1 %a, i1 %b) {
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b0:
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call void @effect(i32 0)
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br i1 %a, label %b1, label %b2
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b1: ; preds = %b0
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call void @effect(i32 1)
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%0 = select i1 %b, ; <ptr> [#uses=1]
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ptr blockaddress(@bar, %b2),
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ptr blockaddress(@bar, %b3)
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indirectbr ptr %0, [label %b2, label %b3]
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b2: ; preds = %b0, %b1
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call void @effect(i32 2)
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ret void
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b3:
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call void @effect(i32 3) ; preds = %b1
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ret void
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}
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; CHECK: .section .text.bar,"ax",@progbits
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; CHECK: bar:
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; CHECK: # %bb.0: # %b0
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; CHECK: # %bb.1: # %b1
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; CHECK: .section .text.split.bar,"ax",@progbits
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; CHECK: bar.cold: # %b2
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; WARN: warning: block #1 has indirect branch and appears as the non-tail block of a path in function bar
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