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d1cad41742
According to MSDN (see the PR), functions which don't touch any callee-saved registers (including %rsp) don't need any unwind info. This patch makes LLVM not emit unwind info for such functions, to save binary size. Differential Revision: https://reviews.llvm.org/D24748 llvm-svn: 282185
17 lines
339 B
LLVM
17 lines
339 B
LLVM
; RUN: llc < %s -verify-coalescing | FileCheck %s
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target triple = "x86_64-pc-win32"
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@fnptr = external global void ()*
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define void @test1() {
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entry:
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%p = load void ()*, void ()** @fnptr
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tail call void %p()
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ret void
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}
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; CHECK-LABEL: test1{{$}}
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; CHECK-NOT: .seh_proc test1
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; CHECK: rex64 jmpq *fnptr(%rip)
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; CHECK-NOT: .seh_endproc
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