mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-25 20:16:05 +00:00
4a9da96dc6
2fcaa549a824efeb56e807fcf750a56bf985296b (2010) added cc1as option
`-output-asm-variant` (untested) to set the output syntax.
`clang -cc1as -filetype asm -output-asm-variant 1` allows AT&T input and
Intel output (`AssemblerDialect` is also used by non-x86 targets).
This patch renames the cc1as option (to avoid collision with -o) and
makes it available for cc1 to set output syntax. This allows different
input & output syntax:
```
echo 'asm("mov $1, %eax");' | clang -xc - -S -o - -Xclang --output-asm-variant=1
```
Note: `AsmWriterFlavor` (with a misleading name), used to initialize
MCAsmInfo::AssemblerDialect, is primarily used for assembly input, not
for output.
Therefore,
`echo 'asm("mov $1, %eax");' | clang -x c - -mllvm --x86-asm-syntax=intel -S -o -`,
which achieves a similar goal before Clang 19, was unintended.
Close #109157
Pull Request: https://github.com/llvm/llvm-project/pull/109360
9 lines
276 B
C
9 lines
276 B
C
// REQUIRES: x86-registered-target
|
|
// RUN: %clang -cc1as -triple x86_64 %s -o - | FileCheck %s --check-prefix=ATT
|
|
// RUN: %clang -cc1as -triple x86_64 %s --output-asm-variant=1 -o - | FileCheck %s --check-prefix=INTEL
|
|
|
|
// ATT: movl $1, %eax
|
|
// INTEL: mov eax, 1
|
|
|
|
mov $1, %eax
|