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69114ee016
Win64 has specific contraints on what valid prologues and epilogues look like. This constraint is born from the flexibility and descriptiveness of Win64's unwind opcodes. Prologues previously emitted by LLVM could not be represented by the unwind opcodes, preventing operations powered by stack unwinding to successfully work. Differential Revision: http://reviews.llvm.org/D7520 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228641 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.4 KiB
LLVM
53 lines
1.4 KiB
LLVM
; RUN: llc -mtriple x86_64-apple-darwin %s -o - | FileCheck %s --check-prefix=APPLE
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; RUN: llc -mtriple x86_64-pc-windows-gnu %s -o - | FileCheck %s --check-prefix=MINGW64
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; RUN: llc -mtriple i686-pc-windows-gnu %s -o - | FileCheck %s --check-prefix=MINGW32
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@_ZTIi = external constant i8*
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define i32 @main() uwtable optsize ssp {
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; APPLE: .cfi_startproc
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; APPLE: .cfi_personality 155, ___gxx_personality_v0
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; APPLE: .cfi_lsda 16, Lexception0
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; APPLE: .cfi_def_cfa_offset 16
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; APPLE: callq __Unwind_Resume
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; APPLE: .cfi_endproc
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; APPLE: GCC_except_table0:
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; APPLE: Lexception0:
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; MINGW64: .seh_proc
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; MINGW64: .seh_handler __gxx_personality_v0
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; MINGW64: .seh_setframe 5, 32
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; MINGW64: callq _Unwind_Resume
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; MINGW64: .seh_handlerdata
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; MINGW64: GCC_except_table0:
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; MINGW64: Lexception0:
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; MINGW64: .seh_endproc
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; MINGW32: .cfi_startproc
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; MINGW32: .cfi_personality 0, ___gxx_personality_v0
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; MINGW32: .cfi_lsda 0, Lexception0
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; MINGW32: .cfi_def_cfa_offset 8
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; MINGW32: calll __Unwind_Resume
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; MINGW32: .cfi_endproc
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; MINGW32: GCC_except_table0:
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; MINGW32: Lexception0:
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entry:
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invoke void @_Z1fv() optsize
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to label %try.cont unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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br label %eh.resume
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try.cont:
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ret i32 0
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eh.resume:
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resume { i8*, i32 } %0
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}
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declare void @_Z1fv() optsize
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declare i32 @__gxx_personality_v0(...)
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