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1d13d635fc
This is an alternative to D66980, which was reverted. Instead of inserting a pseudo instruction that optionally expands to nothing, add a pass that inserts int3 when appropriate after basic block layout. Reviewers: hans Differential Revision: https://reviews.llvm.org/D67201 llvm-svn: 371466
23 lines
693 B
LLVM
23 lines
693 B
LLVM
; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
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; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck -check-prefix=CHECK -check-prefix=WIN64 %s
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; RUN: llc < %s -mtriple=i386-linux-gnu | FileCheck -check-prefix=LINUX %s
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i686-pc-windows-msvc18.0.0"
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; Don't emit empty functions on Windows; it can lead to duplicate entries
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; (multiple functions sharing the same RVA) in the Guard CF Function Table which
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; the kernel refuses to load.
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define void @f() {
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entry:
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unreachable
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; CHECK-LABEL: f:
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; WIN32: nop
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; WIN64: nop
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; LINUX-NOT: nop
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; LINUX-NOT: ud2
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}
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