mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
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
|
|
; RUN: llc < %s -mtriple=i386-pc-mingw32 -o - | FileCheck %s --check-prefix=WIN
|
|
; RUN: llc < %s -mtriple=i686-pc-windows-gnu -o - | FileCheck %s --check-prefix=WIN
|
|
; RUN: llc < %s -mtriple=x86_64-pc-windows-gnu -o - | FileCheck %s --check-prefix=WIN64
|
|
|
|
; LIN: .cfi_personality 0, __gnat_eh_personality
|
|
; LIN: .cfi_lsda 0, .Lexception0
|
|
; WIN: .cfi_personality 0, ___gnat_eh_personality
|
|
; WIN: .cfi_lsda 0, Lexception0
|
|
; WIN64: .seh_handler __gnat_eh_personality
|
|
; WIN64: .seh_handlerdata
|
|
|
|
@error = external global i8
|
|
|
|
define void @_ada_x() {
|
|
entry:
|
|
invoke void @raise()
|
|
to label %eh_then unwind label %unwind
|
|
|
|
unwind: ; preds = %entry
|
|
%eh_ptr = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gnat_eh_personality to i8*)
|
|
catch i8* @error
|
|
%eh_select = extractvalue { i8*, i32 } %eh_ptr, 1
|
|
%eh_typeid = tail call i32 @llvm.eh.typeid.for(i8* @error)
|
|
%tmp2 = icmp eq i32 %eh_select, %eh_typeid
|
|
br i1 %tmp2, label %eh_then, label %Unwind
|
|
|
|
eh_then: ; preds = %unwind, %entry
|
|
ret void
|
|
|
|
Unwind: ; preds = %unwind
|
|
resume { i8*, i32 } %eh_ptr
|
|
}
|
|
|
|
declare void @raise()
|
|
|
|
declare i32 @llvm.eh.typeid.for(i8*) nounwind
|
|
|
|
declare i32 @__gnat_eh_personality(...)
|
|
|
|
declare i32 @_Unwind_Resume(...)
|