[AArch64][SME] Fix broken compiler check for SME2 support in compiler-rt #121625
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…-rt. This compile time test uses inline asm with .arch directives to set the target feature. It is however broken and always fails, since each asm() construct in LLVM sets up a new AsmParser, and therefore the .arch directive has no effect on later asm() contents. To fix this we need to use a single inline asm() call with the entire code chunk to emit contained inside.
sdesmalen-arm approved these changes Jan 6, 2025
paulhuggett pushed a commit to paulhuggett/llvm-project that referenced this pull request Jan 7, 2025
…-rt (llvm#121625) This compile time test uses inline asm with `.arch` directives to set the target feature. It is however broken and always fails, since each `asm()` construct in LLVM sets up a new AsmParser, and therefore the `.arch` directive has no effect on later `asm()` contents. To fix this we need to use a single inline `asm()` call with the entire code chunk to emit contained inside.
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This compile time test uses inline asm with
.archdirectives to set the target feature. It is however broken and always fails, since eachasm()construct in LLVM sets up a new AsmParser, and therefore the.archdirective has no effect on laterasm()contents. To fix this we need to use a single inlineasm()call with the entire code chunk to emit contained inside.