[libc-commits] [libc] [libc] Remove CPU dependent AMDGPU instructions (PR #80707)

[Matt Arsenault via libc-commits]

================
@@ -32,88 +32,8 @@ extern const LIBC_INLINE_VAR uint8_t __oclc_correctly_rounded_sqrt32 = 1;
 // Disable finite math optimizations.
 extern const LIBC_INLINE_VAR uint8_t __oclc_finite_only_opt = 0;
 
-#if defined(__gfx700__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7000;
-#elif defined(__gfx701__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7001;
-#elif defined(__gfx702__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7002;
-#elif defined(__gfx703__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7003;
-#elif defined(__gfx704__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7004;
-#elif defined(__gfx705__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 7005;
-#elif defined(__gfx801__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 8001;
-#elif defined(__gfx802__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 8002;
-#elif defined(__gfx803__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 8003;
-#elif defined(__gfx805__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 8005;
-#elif defined(__gfx810__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 8100;
-#elif defined(__gfx900__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9000;
-#elif defined(__gfx902__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9002;
-#elif defined(__gfx904__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9004;
-#elif defined(__gfx906__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9006;
-#elif defined(__gfx908__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9008;
-#elif defined(__gfx909__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9009;
-#elif defined(__gfx90a__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9010;
-#elif defined(__gfx90c__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9012;
-#elif defined(__gfx940__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9400;
-#elif defined(__gfx941__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9401;
-#elif defined(__gfx942__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 9402;
-#elif defined(__gfx1010__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10100;
-#elif defined(__gfx1011__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10101;
-#elif defined(__gfx1012__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10102;
-#elif defined(__gfx1013__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10103;
-#elif defined(__gfx1030__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10300;
-#elif defined(__gfx1031__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10301;
-#elif defined(__gfx1032__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10302;
-#elif defined(__gfx1033__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10303;
-#elif defined(__gfx1034__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10304;
-#elif defined(__gfx1035__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10305;
-#elif defined(__gfx1036__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 10306;
-#elif defined(__gfx1100__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11000;
-#elif defined(__gfx1101__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11001;
-#elif defined(__gfx1102__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11002;
-#elif defined(__gfx1103__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11003;
-#elif defined(__gfx1150__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11500;
-#elif defined(__gfx1151__)
-extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 11501;
-#else
-#error "Unknown AMDGPU architecture"
-#endif
-}
+// Set the ISA to zero to ingore all ISA specific optimizations.
+extern const LIBC_INLINE_VAR uint32_t __oclc_ISA_version = 0;
----------------
arsenm wrote:

it's not just optimizations and this will break things. you just happen to not be using any of the things that can break in ockl 

https://github.com/llvm/llvm-project/pull/80707