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llvm-mirror/test/MC/X86/code16-32-64.s

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[MC] Pass through .code16/32/64 and .syntax unified for COFF These flags should simply be passed through to the target, which will do the right thing. Add an MC/X86 test that uses these directives with the three primary object file formats and shows that they disassemble the same everywhere. There is a missing test for .code32 on Windows ARM, since I'm not sure exactly how to construct one. Fixes PR43203 llvm-svn: 370805
2019-09-03 20:16:52 +02:00
# RUN: llvm-mc %s -triple x86_64-linux-gnu -filetype=obj -o - | llvm-objdump -d - | FileCheck %s
# RUN: llvm-mc %s -triple x86_64-windows-msvc -filetype=obj -o - | llvm-objdump -d - | FileCheck %s
# RUN: llvm-mc %s -triple x86_64-apple-macos -filetype=obj -o - | llvm-objdump -d - | FileCheck %s
.text
.global foo
foo:
.code64
movl (%eax), %eax
.code32
movl (%eax), %eax
.code16
movl (%eax), %eax
.code64
retq
[llvm-objdump] -d: print `00000000 <foo>:` instead of `00000000 foo:` The new behavior matches GNU objdump. A pair of angle brackets makes tests slightly easier. `.foo:` is not unique and thus cannot be used in a `CHECK-LABEL:` directive. Without `-LABEL`, the CHECK line can match the `Disassembly of section` line and causes the next `CHECK-NEXT:` to fail. ``` Disassembly of section .foo: 0000000000001634 .foo: ``` Bdragon: <> has metalinguistic connotation. it just "feels right" Reviewed By: rupprecht Differential Revision: https://reviews.llvm.org/D75713
2020-03-05 23:18:38 +01:00
# CHECK: <foo>:
[MC] Pass through .code16/32/64 and .syntax unified for COFF These flags should simply be passed through to the target, which will do the right thing. Add an MC/X86 test that uses these directives with the three primary object file formats and shows that they disassemble the same everywhere. There is a missing test for .code32 on Windows ARM, since I'm not sure exactly how to construct one. Fixes PR43203 llvm-svn: 370805
2019-09-03 20:16:52 +02:00
# CHECK-NEXT: 67 8b 00 movl (%eax), %eax
# CHECK-NEXT: 8b 00 movl (%rax), %eax
# CHECK-NEXT: 67 66 8b 00 movw (%eax), %ax
# CHECK-NEXT: c3 retq
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