[llvm] r362198 - [X86] Add test to show missed opportunity to use masked vcvtps2pd for vselect+extload.
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Thu May 30 23:21:50 PDT 2019
Author: ctopper
Date: Thu May 30 23:21:49 2019
New Revision: 362198
URL: http://llvm.org/viewvc/llvm-project?rev=362198&view=rev
Log:
[X86] Add test to show missed opportunity to use masked vcvtps2pd for vselect+extload.
Modified:
llvm/trunk/test/CodeGen/X86/avx512-cvt.ll
Modified: llvm/trunk/test/CodeGen/X86/avx512-cvt.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx512-cvt.ll?rev=362198&r1=362197&r2=362198&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx512-cvt.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx512-cvt.ll Thu May 30 23:21:49 2019
@@ -778,6 +778,30 @@ define <4 x double> @f32to4f64_mask(<4 x
ret <4 x double> %c
}
+define <4 x double> @f32to4f64_mask_load(<4 x float>* %p, <4 x double> %b1, <4 x double> %a1) {
+; NOVL-LABEL: f32to4f64_mask_load:
+; NOVL: # %bb.0:
+; NOVL-NEXT: # kill: def $ymm1 killed $ymm1 def $zmm1
+; NOVL-NEXT: # kill: def $ymm0 killed $ymm0 def $zmm0
+; NOVL-NEXT: vcvtps2pd (%rdi), %ymm2
+; NOVL-NEXT: vcmpltpd %zmm1, %zmm0, %k1
+; NOVL-NEXT: vmovapd %zmm2, %zmm0 {%k1} {z}
+; NOVL-NEXT: # kill: def $ymm0 killed $ymm0 killed $zmm0
+; NOVL-NEXT: retq
+;
+; VL-LABEL: f32to4f64_mask_load:
+; VL: # %bb.0:
+; VL-NEXT: vcvtps2pd (%rdi), %ymm2
+; VL-NEXT: vcmpltpd %ymm1, %ymm0, %k1
+; VL-NEXT: vmovapd %ymm2, %ymm0 {%k1} {z}
+; VL-NEXT: retq
+ %b = load <4 x float>, <4 x float>* %p
+ %a = fpext <4 x float> %b to <4 x double>
+ %mask = fcmp ogt <4 x double> %a1, %b1
+ %c = select <4 x i1> %mask, <4 x double> %a, <4 x double> zeroinitializer
+ ret <4 x double> %c
+}
+
define <2 x double> @f32tof64_inreg(<2 x double> %a0, <4 x float> %a1) nounwind {
; ALL-LABEL: f32tof64_inreg:
; ALL: # %bb.0:
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