llvm/test/MC/COFF/seh.s
Charles Davis 07cbe23173 Assorted fixes for Win64 EH unwind info emission:
- Flip order of bitfields. This gets our output matching GAS.
- Handle case where the end of the prolog wasn't specified.
- If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes.

Add a test for the latter two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 15:10:25 +00:00

61 lines
1.6 KiB
ArmAsm

// This test checks that the SEH directives emit the correct unwind data.
// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | coff-dump.py | FileCheck %s
// CHECK: Name = .xdata
// CHECK-NEXT: VirtualSize
// CHECK-NEXT: VirtualAddress
// CHECK-NEXT: SizeOfRawData = 52
// CHECK-NEXT: PointerToRawData
// CHECK-NEXT: PointerToRelocations
// CHECK-NEXT: PointerToLineNumbers
// CHECK-NEXT: NumberOfRelocations = 4
// CHECK-NEXT: NumberOfLineNumbers = 0
// CHECK-NEXT: Charateristics
// CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA
// CHECK-NEXT: IMAGE_SCN_ALIGN_4BYTES
// CHECK-NEXT: IMAGE_SCN_MEM_READ
// CHECK-NEXT: IMAGE_SCN_MEM_WRITE
// CHECK-NEXT: SectionData
// CHECK-NEXT: 09 12 08 03 00 03 0F 30 - 0E 88 00 00 09 64 02 00
// CHECK-NEXT: 04 22 00 1A 00 00 00 00 - 00 00 00 00 21 00 00 00
// CHECK-NEXT: 00 00 00 00 1B 00 00 00 - 00 00 00 00 01 00 00 00
// CHECK-NEXT: 00 00 00 00
.text
.globl func
.def func; .scl 2; .type 32; .endef
.seh_proc func
func:
.seh_pushframe @code
subq $24, %rsp
.seh_stackalloc 24
movq %rsi, 16(%rsp)
.seh_savereg %rsi, 16
movups %xmm8, (%rsp)
.seh_savexmm %xmm8, 0
pushq %rbx
.seh_pushreg 3
mov %rsp, %rbx
.seh_setframe 3, 0
.seh_endprologue
.seh_handler __C_specific_handler, @except
.seh_handlerdata
.long 0
.text
.seh_startchained
.seh_endprologue
.seh_endchained
lea (%rbx), %rsp
pop %rbx
addq $24, %rsp
ret
.seh_endproc
// Test emission of small functions.
.globl smallFunc
.def smallFunc; .scl 2; .type 32; .endef
.seh_proc smallFunc
smallFunc:
ret
.seh_endproc