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Add pattern for unsigned v4i32->v4f64 convert on AVX512. 

llvm-svn: 211164
This commit is contained in:
Cameron McInally 2014-06-18 14:04:37 +00:00
parent ee73cc5894
commit f10a7c963b
2 changed files with 12 additions and 0 deletions
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4
llvm/lib/Target/X86/X86InstrAVX512.td
View File

@ -3174,6 +3174,10 @@ def : Pat<(v4f32 (uint_to_fp (v4i32 VR128X:$src1))),
(EXTRACT_SUBREG (v16f32 (VCVTUDQ2PSZrr
(v16i32 (SUBREG_TO_REG (i32 0), VR128X:$src1, sub_xmm)))), sub_xmm)>;
def : Pat<(v4f64 (uint_to_fp (v4i32 VR128X:$src1))),
(EXTRACT_SUBREG (v8f64 (VCVTUDQ2PDZrr
(v8i32 (SUBREG_TO_REG (i32 0), VR128X:$src1, sub_xmm)))), sub_ymm)>;
def : Pat<(v16f32 (int_x86_avx512_mask_cvtdq2ps_512 (v16i32 VR512:$src),
(bc_v16f32 (v16i32 immAllZerosV)), (i16 -1), imm:$rc)),
(VCVTDQ2PSZrrb VR512:$src, imm:$rc)>;

8
llvm/test/CodeGen/X86/avx512-cvt.ll
View File

@ -192,6 +192,14 @@ define <16 x double> @uitof64(<16 x i32> %a) nounwind {
ret <16 x double> %b
}
; CHECK-LABEL: uitof64_256
; CHECK: vcvtudq2pd
; CHECK: ret
define <4 x double> @uitof64_256(<4 x i32> %a) nounwind {
%b = uitofp <4 x i32> %a to <4 x double>
ret <4 x double> %b
}
; CHECK-LABEL: uitof32
; CHECK: vcvtudq2ps
; CHECK: ret