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llvm/test/MC/AArch64/seh-optimize.s
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| // This test checks that the unwinding opcodes are remapped to more | |||||
| // efficient ones where possible. | |||||
| // RUN: llvm-mc -triple aarch64-pc-win32 -filetype=obj %s | llvm-readobj -u - | FileCheck %s | |||||
| // CHECK: UnwindInformation [ | |||||
| // CHECK-NEXT: RuntimeFunction { | |||||
| // CHECK-NEXT: Function: func | |||||
| // CHECK-NEXT: ExceptionRecord: .xdata | |||||
| // CHECK-NEXT: ExceptionData { | |||||
| // CHECK: Prologue [ | |||||
| // CHECK-NEXT: 0xd882 ; stp d10, d11, [sp, #16] | |||||
| // CHECK-NEXT: 0xda07 ; stp d8, d9, [sp, #-64]! | |||||
| // CHECK-NEXT: 0xe6 ; save next | |||||
| // CHECK-NEXT: 0x28 ; stp x19, x20, [sp, #-64]! | |||||
| // CHECK-NEXT: 0xca49 ; stp x28, x29, [sp, #72] | |||||
| // CHECK-NEXT: 0xe6 ; save next | |||||
| // CHECK-NEXT: 0xe6 ; save next | |||||
| // CHECK-NEXT: 0xe6 ; save next | |||||
| // CHECK-NEXT: 0xcc47 ; stp x20, x21, [sp, #-64]! | |||||
| // CHECK-NEXT: 0x42 ; stp x29, x30, [sp, #16] | |||||
| // CHECK-NEXT: 0xca02 ; stp x27, x28, [sp, #16] | |||||
| // CHECK-NEXT: 0x83 ; stp x29, x30, [sp, #-32]! | |||||
| // CHECK-NEXT: 0xce03 ; stp x27, x28, [sp, #-32]! | |||||
| // CHECK-NEXT: 0xe1 ; mov fp, sp | |||||
| // CHECK-NEXT: 0xe201 ; add fp, sp, #8 | |||||
| // CHECK-NEXT: 0xe4 ; end | |||||
| // CHECK-NEXT: ] | |||||
| // CHECK-NEXT: EpilogueScopes [ | |||||
| // CHECK-NEXT: EpilogueScope { | |||||
| // CHECK: Opcodes [ | |||||
| // CHECK-NEXT: 0xc904 ; ldp x23, x24, [sp, #32] | |||||
| // CHECK-NEXT: 0xe6 ; restore next | |||||
| // CHECK-NEXT: 0xcc83 ; ldp x21, x22, [sp], #32 | |||||
| // CHECK-NEXT: 0x24 ; ldp x19, x20, [sp], #32 | |||||
| // CHECK-NEXT: 0xe4 ; end | |||||
| // CHECK-NEXT: ] | |||||
| // CHECK-NEXT: } | |||||
| // CHECK-NEXT: ] | |||||
| // CHECK-NEXT: } | |||||
| // CHECK-NEXT: } | |||||
| // CHECK-NEXT: ] | |||||
| .text | |||||
| .globl func | |||||
| .seh_proc func | |||||
| func: | |||||
| add x29, sp, #8 | |||||
| .seh_add_fp 8 | |||||
| add x29, sp, #0 | |||||
| .seh_add_fp 0 | |||||
| stp x27, x28, [sp, #-32]! | |||||
| .seh_save_regp_x x27, 32 | |||||
| stp x29, x30, [sp, #-32]! | |||||
| .seh_save_regp_x x29, 32 | |||||
| stp x27, x28, [sp, #16] | |||||
| .seh_save_regp x27, 16 | |||||
| stp x29, x30, [sp, #16] | |||||
| .seh_save_regp x29, 16 | |||||
| stp x20, x21, [sp, #-64]! | |||||
| .seh_save_regp_x x20, 64 | |||||
| stp x22, x23, [sp, #16] | |||||
| .seh_save_regp x22, 16 | |||||
| stp x24, x25, [sp, #32] | |||||
| .seh_save_next | |||||
| stp x26, x27, [sp, #48] | |||||
| .seh_save_regp x26, 48 | |||||
| stp x28, x29, [sp, #72] | |||||
| .seh_save_regp x28, 72 | |||||
| stp x19, x20, [sp, #-64]! | |||||
| .seh_save_r19r20_x 64 | |||||
| stp x21, x22, [sp, #16] | |||||
| .seh_save_regp x21, 16 | |||||
| stp d8, d9, [sp, #-64]! | |||||
| .seh_save_fregp_x d8, 64 | |||||
| stp d10, d11, [sp, #16] | |||||
| // This is intentionally not converted into a save_next, to avoid | |||||
| // bugs in the windows unwinder. | |||||
| .seh_save_fregp d10, 16 | |||||
| .seh_endprologue | |||||
| nop | |||||
| .seh_startepilogue | |||||
| ldp x27, x28, [sp, #32] | |||||
| .seh_save_regp x23, 32 | |||||
| ldp x23, x24, [sp, #16] | |||||
| .seh_save_regp x23, 16 | |||||
| ldp x21, x22, [sp], #32 | |||||
| .seh_save_regp_x x21, 32 | |||||
| ldp x19, x20, [sp], #32 | |||||
| .seh_save_regp_x x19, 32 | |||||
| .seh_endepilogue | |||||
| ret | |||||
| .seh_endproc | |||||