d6699423f1
This eliminates the outlining penalty for llvm.trap/unreachable, because callers no longer have to emit cleanup/ret instructions after calling an outlined `noreturn` function. rdar://45523626 llvm-svn: 346421
38 lines
917 B
LLVM
38 lines
917 B
LLVM
; RUN: opt -hotcoldsplit -pass-remarks=hotcoldsplit -S < %s 2>&1 | FileCheck %s
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; RUN: opt -passes=hotcoldsplit -pass-remarks=hotcoldsplit -S < %s 2>&1 | FileCheck %s
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; Make sure this compiles. This test used to fail with an invalid phi node: the
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; two predecessors were outlined and the SSA representation was invalid.
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; CHECK: remark: <unknown>:0:0: fun split cold code into fun.cold.1
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; CHECK-LABEL: @fun
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; CHECK: codeRepl:
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; CHECK-NEXT: call void @fun.cold.1
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; CHECK: define {{.*}}@fun.cold.1{{.*}} [[cold_attr:#[0-9]+]]
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; CHECK: attributes [[cold_attr]] = { {{.*}}noreturn
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define void @fun() {
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entry:
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br i1 undef, label %if.then, label %if.else
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if.then:
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ret void
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if.else:
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br label %if.then4
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if.then4:
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br i1 undef, label %if.then5, label %if.end
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if.then5:
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br label %cleanup
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if.end:
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br label %cleanup
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cleanup:
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%cleanup.dest.slot.0 = phi i32 [ 1, %if.then5 ], [ 0, %if.end ]
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unreachable
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}
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