diff options
Diffstat (limited to 'bolt/test')
| -rw-r--r-- | bolt/test/X86/linux-alt-instruction.s | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/bolt/test/X86/linux-alt-instruction.s b/bolt/test/X86/linux-alt-instruction.s index dc1b12a2..fe3abbf 100644 --- a/bolt/test/X86/linux-alt-instruction.s +++ b/bolt/test/X86/linux-alt-instruction.s @@ -38,7 +38,7 @@ # RUN: llvm-bolt %t.exe --print-cfg -o %t.fs4.out | FileCheck %s # CHECK: BOLT-INFO: Linux kernel binary detected -# CHECK: BOLT-INFO: parsed 2 alternative instruction entries +# CHECK: BOLT-INFO: parsed 3 alternative instruction entries .text .globl _start @@ -50,10 +50,12 @@ _start: # CHECK: rdtsc # CHECK-SAME: AltInst: 1 # CHECK-SAME: AltInst2: 2 +# CHECK-SAME: AltInst3: 3 nop # CHECK-NEXT: nop # CHECK-SAME: AltInst: 1 # CHECK-SAME: AltInst2: 2 +# CHECK-SAME: AltInst3: 3 nop nop .L1: @@ -66,6 +68,9 @@ _start: rdtsc .A1: rdtscp +.A2: + pushf + pop %rax .Ae: ## Alternative instruction info. @@ -92,11 +97,51 @@ _start: .word 0x3b # feature flags .endif .byte .L1 - .L0 # org size - .byte .Ae - .A1 # alt size + .byte .A2 - .A1 # alt size .ifdef PADLEN .byte 0 .endif + .long .L0 - . # org instruction + .long .A2 - . # alt instruction +.ifdef FEATURE_SIZE_4 + .long 0x110 # feature flags +.else + .word 0x110 # feature flags +.endif + .byte .L1 - .L0 # org size + .byte .Ae - .A2 # alt size +.ifdef PADLEN + .byte 0 +.endif + +## ORC unwind for "pushf; pop %rax" alternative sequence. + .section .orc_unwind,"a",@progbits + .align 4 + .section .orc_unwind_ip,"a",@progbits + .align 4 + + .section .orc_unwind + .2byte 8 + .2byte 0 + .2byte 0x205 + .section .orc_unwind_ip + .long _start - . + + .section .orc_unwind + .2byte 16 + .2byte 0 + .2byte 0x205 + .section .orc_unwind_ip + .long .L0 + 1 - . + + .section .orc_unwind + .2byte 8 + .2byte 0 + .2byte 0x205 + .section .orc_unwind_ip + .long .L0 + 2 - . + ## Fake Linux Kernel sections. .section __ksymtab,"a",@progbits .section __ksymtab_gpl,"a",@progbits |