Simon Pilgrim 90770c7c76 [X86][SSE] Replace lossless i32/f32 to f64 conversion intrinsics with generic IR ...

Both the (V)CVTDQ2PD(Y) (i32 to f64) and (V)CVTPS2PD(Y) (f32 to f64) conversion instructions are lossless and can be safely represented as generic __builtin_convertvector calls instead of x86 intrinsics without affecting final codegen.

This patch removes the clang builtins and their use in the sse2/avx headers - a future patch will deal with removing the llvm intrinsics, but that will require a bit more work.

Differential Revision: http://reviews.llvm.org/D20528

llvm-svn: 270499

2016-05-23 22:13:02 +00:00

499 B

Raw Blame History

View Raw