llvm/test/MC/X86/cfi_def_cfa-crash.s
2015-08-12 10:36:16 +00:00

90 lines
2.0 KiB
ArmAsm

// RUN: llvm-mc -triple x86_64-apple-darwin -filetype=obj %s -o - | llvm-readobj -sections | FileCheck %s
// We were trying to generate compact unwind info for assembly like this.
// The .cfi_def_cfa directive, however, throws a wrench into that and was
// causing an llvm_unreachable() failure. Make sure the assembler can handle
// the input. The actual eh_frames created using these directives are checked
// elsewhere. This test is a simpler "does the code assemble" check.
// rdar://15406518
.macro SaveRegisters
push %rbp
.cfi_def_cfa_offset 16
.cfi_offset rbp, -16
mov %rsp, %rbp
.cfi_def_cfa_register rbp
sub $$0x80+8, %rsp
movdqa %xmm0, -0x80(%rbp)
push %rax
movdqa %xmm1, -0x70(%rbp)
push %rdi
movdqa %xmm2, -0x60(%rbp)
push %rsi
movdqa %xmm3, -0x50(%rbp)
push %rdx
movdqa %xmm4, -0x40(%rbp)
push %rcx
movdqa %xmm5, -0x30(%rbp)
push %r8
movdqa %xmm6, -0x20(%rbp)
push %r9
movdqa %xmm7, -0x10(%rbp)
.endmacro
.macro RestoreRegisters
movdqa -0x80(%rbp), %xmm0
pop %r9
movdqa -0x70(%rbp), %xmm1
pop %r8
movdqa -0x60(%rbp), %xmm2
pop %rcx
movdqa -0x50(%rbp), %xmm3
pop %rdx
movdqa -0x40(%rbp), %xmm4
pop %rsi
movdqa -0x30(%rbp), %xmm5
pop %rdi
movdqa -0x20(%rbp), %xmm6
pop %rax
movdqa -0x10(%rbp), %xmm7
leave
.cfi_def_cfa rsp, 8
.cfi_same_value rbp
.endmacro
_foo:
.cfi_startproc
SaveRegisters
RestoreRegisters
ret
.cfi_endproc
// CHECK: Section {
// CHECK: Index: 1
// CHECK: Name: __eh_frame (5F 5F 65 68 5F 66 72 61 6D 65 00 00 00 00 00 00)
// CHECK: Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
// CHECK: Address: 0x70
// CHECK: Size: 0x40
// CHECK: Offset: 480
// CHECK: Alignment: 3
// CHECK: RelocationOffset: 0x0
// CHECK: RelocationCount: 0
// CHECK: Type: 0xB
// CHECK: Attributes [ (0x680000)
// CHECK: LiveSupport (0x80000)
// CHECK: NoTOC (0x400000)
// CHECK: StripStaticSyms (0x200000)
// CHECK: ]
// CHECK: Reserved1: 0x0
// CHECK: Reserved2: 0x0
// CHECK: }