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llvm-mirror/test/MC/X86/align-via-padding-corner.s
Shengchen Kan 471fb1a342 [X86][MC] Disable Prefix padding after hardcode/prefix
Reviewers: reames, MaskRay, craig.topper, LuoYuanke, jyknight, eli.friedman

Reviewed By: craig.topper

Subscribers: hiraditya, llvm-commits, annita.zhang

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76475
2020-04-01 09:49:52 +08:00

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816 B
ArmAsm

# RUN: llvm-mc -mcpu=skylake -filetype=obj -triple x86_64-pc-linux-gnu %s -x86-pad-max-prefix-size=5 | llvm-objdump -d - | FileCheck %s
# The first test check the correctness cornercase - can't add prefixes on a
# instruction following by a prefix.
.globl labeled_prefix_test
labeled_prefix_test:
# CHECK: 0: 2e 2e 2e 2e 2e e9 06 00 00 00 jmp
# CHECK: a: 3e e9 00 00 00 00 jmp
jmp bar
DS
jmp bar
.p2align 4
bar:
ret
# The second test is similar to the second test - can't add prefixes on a
# instruction following by hardcode.
.p2align 5
.globl labeled_hardcode_test
labeled_hardcode_test:
# CHECK: 20: 2e 2e 2e 2e 2e e9 06 00 00 00 jmp
# CHECK: 2a: 3e e9 00 00 00 00 jmp
jmp baz
.byte 0x3e
jmp baz
.p2align 4
baz:
ret