[libclc] [libclc] Move sign to the CLC builtins library (PR #115699)

[Matt Arsenault via cfe-commits]

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@@ -322,22 +322,26 @@ foreach( t ${LIBCLC_TARGETS_TO_BUILD} )
 
     if ( ARCH STREQUAL spirv OR ARCH STREQUAL spirv64 )
       set( build_flags -O0 -finline-hint-functions -DCLC_SPIRV )
-      set( opt_flags )
+      set( clc_opt_flags )
+      # Inline CLC functions into OpenCL builtins
+      set( opencl_opt_flags "--passes=always-inline" )
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arsenm wrote:

The correct IR implementation of FMA is universally call the llvm.fma intrinsic. There's no need for additional configuration in libclc. The choice to emit a call or whatnot is then a codegen decision, and is subject to nobuiltin-like configuration 

https://github.com/llvm/llvm-project/pull/115699