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b720a3d15c
-- This patch enables LLVM to emit Win64-native unwind info rather than DWARF CFI. It handles all corner cases (I hope), including stack realignment. Because the unwind info is not flexible enough to describe stack frames with a gap of unknown size in the middle, such as the one caused by stack realignment, I modified register spilling code to place all spills into the fixed frame slots, so that they can be accessed relative to the frame pointer. Patch by Vadim Chugunov! Reviewed By: rnk Differential Revision: http://reviews.llvm.org/D4081 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211691 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=i686-pc-linux-gnu -o - | FileCheck %s --check-prefix=LIN
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; RUN: llc < %s -mtriple=i386-pc-mingw32 -o - | FileCheck %s --check-prefix=WIN
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; RUN: llc < %s -mtriple=i686-pc-windows-gnu -o - | FileCheck %s --check-prefix=WIN
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; RUN: llc < %s -mtriple=x86_64-pc-windows-gnu -o - | FileCheck %s --check-prefix=WIN64
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; LIN: .cfi_personality 0, __gnat_eh_personality
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; LIN: .cfi_lsda 0, .Lexception0
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; WIN: .cfi_personality 0, ___gnat_eh_personality
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; WIN: .cfi_lsda 0, Lexception0
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; WIN64: .seh_handler __gnat_eh_personality
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; WIN64: .seh_handlerdata
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@error = external global i8
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define void @_ada_x() {
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entry:
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invoke void @raise()
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to label %eh_then unwind label %unwind
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unwind: ; preds = %entry
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%eh_ptr = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gnat_eh_personality to i8*)
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catch i8* @error
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%eh_select = extractvalue { i8*, i32 } %eh_ptr, 1
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%eh_typeid = tail call i32 @llvm.eh.typeid.for(i8* @error)
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%tmp2 = icmp eq i32 %eh_select, %eh_typeid
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br i1 %tmp2, label %eh_then, label %Unwind
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eh_then: ; preds = %unwind, %entry
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ret void
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Unwind: ; preds = %unwind
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resume { i8*, i32 } %eh_ptr
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}
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declare void @raise()
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declare i32 @llvm.eh.typeid.for(i8*) nounwind
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declare i32 @__gnat_eh_personality(...)
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declare i32 @_Unwind_Resume(...)
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