[clang] [llvm] [X86][MC] Added support for -msse2avx option in llvm-mc (PR #96860)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,88 @@
+# RUN: llvm-mc -triple x86_64 -x86-asm-syntax=intel -x86-sse2avx %s | FileCheck %s
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MaskRay wrote:

Perhaps merge sse2avx-att.s sse2avx-intel.s. Keep the att version.

Add `llvm-mc -triple=x86_64 -output-asm-variant=1 %s | llvm-mc -triple=x86_64 -x86-asm-syntax=intel -x86-sse2avx`
to test Intel syntax input.

https://github.com/llvm/llvm-project/pull/96860