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llvm/test/MC/X86/align-branch-64-5a.s
- This file was added.
# Check no nop is inserted if no branch cross or is against the boundary | |||||
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown --x86-align-branch-boundary=32 --x86-align-branch=fused+jcc+jmp+indirect+call+ret %s | llvm-objdump -d - > %t1 | |||||
# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s | llvm-objdump -d - > %t2 | |||||
# RUN: cmp %t1 %t2 | |||||
# RUN: FileCheck --input-file=%t1 %s | |||||
# CHECK: 0000000000000000 foo: | |||||
# CHECK-COUNT-3: : 64 89 04 25 01 00 00 00 movl %eax, %fs:1 | |||||
# CHECK: 18: c1 e9 02 shrl $2, %ecx | |||||
# CHECK-NEXT: 1b: 89 d1 movl %edx, %ecx | |||||
# CHECK-NEXT: 1d: 75 fc jne {{.*}} | |||||
# CHECK-NEXT: 1f: 55 pushq %rbp | |||||
# CHECK-NEXT: 20: f6 c2 02 testb $2, %dl | |||||
# CHECK-NEXT: 23: 75 fa jne {{.*}} | |||||
# CHECK-COUNT-2: : 64 89 04 25 01 00 00 00 movl %eax, %fs:1 | |||||
# CHECK: 35: c1 e9 02 shrl $2, %ecx | |||||
# CHECK-NEXT: 38: e8 c3 ff ff ff callq {{.*}} | |||||
# CHECK-NEXT: 3d: ff e0 jmpq *%rax | |||||
# CHECK-NEXT: 3f: 55 pushq %rbp | |||||
# CHECK-NEXT: 40: c2 63 00 retq $99 | |||||
.text | |||||
.p2align 4 | |||||
foo: | |||||
.rept 3 | |||||
movl %eax, %fs:0x1 | |||||
.endr | |||||
shrl $2, %ecx | |||||
.L1: | |||||
movl %edx, %ecx | |||||
jne .L1 | |||||
.L2: | |||||
push %rbp | |||||
testb $2, %dl | |||||
jne .L2 | |||||
.rept 2 | |||||
movl %eax, %fs:0x1 | |||||
.endr | |||||
shrl $2, %ecx | |||||
call foo | |||||
jmp *%rax | |||||
push %rbp | |||||
ret $99 |