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      1 // This test checks that the unwind data is dumped by llvm-objdump.
      2 // RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-objdump -u - | FileCheck %s
      3 
      4 // CHECK:      Unwind info:
      5 // CHECK:      Function Table:
      6 // CHECK-NEXT: Start Address: .text
      7 // CHECK-NEXT: End Address: .text + 0x001b
      8 // CHECK-NEXT: Unwind Info Address: .xdata
      9 // CHECK-NEXT: Version: 1
     10 // CHECK-NEXT: Flags: 1 UNW_ExceptionHandler
     11 // CHECK-NEXT: Size of prolog: 18
     12 // CHECK-NEXT: Number of Codes: 8
     13 // CHECK-NEXT: Frame register: RBX
     14 // CHECK-NEXT: Frame offset: 0
     15 // CHECK-NEXT: Unwind Codes:
     16 // CHECK-NEXT: 0x00: UOP_SetFPReg
     17 // CHECK-NEXT: 0x0f: UOP_PushNonVol RBX
     18 // CHECK-NEXT: 0x0e: UOP_SaveXMM128 XMM8 [0x0000]
     19 // CHECK-NEXT: 0x09: UOP_SaveNonVol RSI [0x0010]
     20 // CHECK-NEXT: 0x04: UOP_AllocSmall 24
     21 // CHECK-NEXT: 0x00: UOP_PushMachFrame w/o error code
     22 // CHECK:      Function Table:
     23 // CHECK-NEXT: Start Address: .text + 0x0012
     24 // CHECK-NEXT: End Address: .text + 0x0012
     25 // CHECK-NEXT: Unwind Info Address: .xdata + 0x001c
     26 // CHECK-NEXT: Version: 1
     27 // CHECK-NEXT: Flags: 4 UNW_ChainInfo
     28 // CHECK-NEXT: Size of prolog: 0
     29 // CHECK-NEXT: Number of Codes: 0
     30 // CHECK-NEXT: No frame pointer used
     31 // CHECK:      Function Table:
     32 // CHECK-NEXT: Start Address: .text + 0x001b
     33 // CHECK-NEXT: End Address: .text + 0x001c
     34 // CHECK-NEXT: Unwind Info Address: .xdata + 0x002c
     35 // CHECK-NEXT: Version: 1
     36 // CHECK-NEXT: Flags: 0
     37 // CHECK-NEXT: Size of prolog: 0
     38 // CHECK-NEXT: Number of Codes: 0
     39 // CHECK-NEXT: No frame pointer used
     40 // CHECK:      Function Table:
     41 // CHECK-NEXT: Start Address: .text + 0x001c
     42 // CHECK-NEXT: End Address: .text + 0x0039
     43 // CHECK-NEXT: Unwind Info Address: .xdata + 0x0034
     44 // CHECK-NEXT: Version: 1
     45 // CHECK-NEXT: Flags: 0
     46 // CHECK-NEXT: Size of prolog: 14
     47 // CHECK-NEXT: Number of Codes: 6
     48 // CHECK-NEXT: No frame pointer used
     49 // CHECK-NEXT: Unwind Codes:
     50 // CHECK-NEXT: 0x0e: UOP_AllocLarge 8454128
     51 // CHECK-NEXT: 0x07: UOP_AllocLarge 8190
     52 // CHECK-NEXT: 0x00: UOP_PushMachFrame w/o error code
     53 
     54     .text
     55     .globl func
     56     .def func; .scl 2; .type 32; .endef
     57     .seh_proc func
     58 func:
     59     .seh_pushframe @code
     60     subq $24, %rsp
     61     .seh_stackalloc 24
     62     movq %rsi, 16(%rsp)
     63     .seh_savereg %rsi, 16
     64     movups %xmm8, (%rsp)
     65     .seh_savexmm %xmm8, 0
     66     pushq %rbx
     67     .seh_pushreg 3
     68     mov %rsp, %rbx
     69     .seh_setframe 3, 0
     70     .seh_endprologue
     71     .seh_handler __C_specific_handler, @except
     72     .seh_handlerdata
     73     .long 0
     74     .text
     75     .seh_startchained
     76     .seh_endprologue
     77     .seh_endchained
     78     lea (%rbx), %rsp
     79     pop %rbx
     80     addq $24, %rsp
     81     ret
     82     .seh_endproc
     83 
     84 // Test emission of small functions.
     85     .globl smallFunc
     86     .def smallFunc; .scl 2; .type 32; .endef
     87     .seh_proc smallFunc
     88 smallFunc:
     89     ret
     90     .seh_endproc
     91 
     92 // Function with big stack allocation.
     93     .globl smallFunc
     94     .def allocFunc; .scl 2; .type 32; .endef
     95     .seh_proc smallFunc
     96 allocFunc:
     97     .seh_pushframe @code
     98     subq $65520, %rsp
     99     .seh_stackalloc 65520
    100     sub $8454128, %rsp
    101     .seh_stackalloc 8454128
    102     .seh_endprologue
    103     add $8454128, %rsp
    104     addq $65520, %rsp
    105     ret
    106     .seh_endproc
    107