[llvm] r340139 - [X86][SSE] Add PACKSS test showing ComputeNumSignBits failure to handle demanded elts through a bitcast
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Sun Aug 19 09:01:48 PDT 2018
Author: rksimon
Date: Sun Aug 19 09:01:47 2018
New Revision: 340139
URL: http://llvm.org/viewvc/llvm-project?rev=340139&view=rev
Log:
[X86][SSE] Add PACKSS test showing ComputeNumSignBits failure to handle demanded elts through a bitcast
Modified:
llvm/trunk/test/CodeGen/X86/packss.ll
Modified: llvm/trunk/test/CodeGen/X86/packss.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/packss.ll?rev=340139&r1=340138&r2=340139&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/packss.ll (original)
+++ llvm/trunk/test/CodeGen/X86/packss.ll Sun Aug 19 09:01:47 2018
@@ -103,3 +103,146 @@ define <8 x i16> @trunc_ashr_v4i32_icmp_
%5 = trunc <8 x i32> %4 to <8 x i16>
ret <8 x i16> %5
}
+
+define <8 x i16> @trunc_ashr_v4i64_demandedelts(<4 x i64> %a0) {
+; X86-SSE-LABEL: trunc_ashr_v4i64_demandedelts:
+; X86-SSE: # %bb.0:
+; X86-SSE-NEXT: movdqa %xmm0, %xmm2
+; X86-SSE-NEXT: psllq $63, %xmm2
+; X86-SSE-NEXT: movdqa %xmm0, %xmm3
+; X86-SSE-NEXT: movsd {{.*#+}} xmm3 = xmm2[0],xmm3[1]
+; X86-SSE-NEXT: movdqa %xmm1, %xmm2
+; X86-SSE-NEXT: psllq $63, %xmm2
+; X86-SSE-NEXT: movdqa %xmm1, %xmm4
+; X86-SSE-NEXT: movsd {{.*#+}} xmm4 = xmm2[0],xmm4[1]
+; X86-SSE-NEXT: psrlq $63, %xmm4
+; X86-SSE-NEXT: movsd {{.*#+}} xmm1 = xmm4[0],xmm1[1]
+; X86-SSE-NEXT: movapd {{.*#+}} xmm2 = [4.940656e-324,-0.000000e+00]
+; X86-SSE-NEXT: xorpd %xmm2, %xmm1
+; X86-SSE-NEXT: psubq %xmm2, %xmm1
+; X86-SSE-NEXT: psrlq $63, %xmm3
+; X86-SSE-NEXT: movsd {{.*#+}} xmm0 = xmm3[0],xmm0[1]
+; X86-SSE-NEXT: xorpd %xmm2, %xmm0
+; X86-SSE-NEXT: psubq %xmm2, %xmm0
+; X86-SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,0,0,0]
+; X86-SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,0,0,0]
+; X86-SSE-NEXT: pslld $16, %xmm1
+; X86-SSE-NEXT: psrad $16, %xmm1
+; X86-SSE-NEXT: pslld $16, %xmm0
+; X86-SSE-NEXT: psrad $16, %xmm0
+; X86-SSE-NEXT: packssdw %xmm1, %xmm0
+; X86-SSE-NEXT: retl
+;
+; X86-AVX1-LABEL: trunc_ashr_v4i64_demandedelts:
+; X86-AVX1: # %bb.0:
+; X86-AVX1-NEXT: movl $63, %eax
+; X86-AVX1-NEXT: vmovd %eax, %xmm1
+; X86-AVX1-NEXT: vpsllq %xmm1, %xmm0, %xmm2
+; X86-AVX1-NEXT: vextractf128 $1, %ymm0, %xmm0
+; X86-AVX1-NEXT: vpsllq %xmm1, %xmm0, %xmm0
+; X86-AVX1-NEXT: vmovdqa {{.*#+}} xmm3 = [0,2147483648,0,2147483648]
+; X86-AVX1-NEXT: vpsrlq %xmm1, %xmm3, %xmm3
+; X86-AVX1-NEXT: vpsrlq %xmm1, %xmm0, %xmm0
+; X86-AVX1-NEXT: vpxor %xmm3, %xmm0, %xmm0
+; X86-AVX1-NEXT: vpsubq %xmm3, %xmm0, %xmm0
+; X86-AVX1-NEXT: vpsrlq %xmm1, %xmm2, %xmm1
+; X86-AVX1-NEXT: vpxor %xmm3, %xmm1, %xmm1
+; X86-AVX1-NEXT: vpsubq %xmm3, %xmm1, %xmm1
+; X86-AVX1-NEXT: vinsertf128 $1, %xmm0, %ymm1, %ymm0
+; X86-AVX1-NEXT: vpermilps {{.*#+}} ymm0 = ymm0[0,0,0,0,4,4,4,4]
+; X86-AVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
+; X86-AVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; X86-AVX1-NEXT: vpshufb %xmm2, %xmm1, %xmm1
+; X86-AVX1-NEXT: vpshufb %xmm2, %xmm0, %xmm0
+; X86-AVX1-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; X86-AVX1-NEXT: vzeroupper
+; X86-AVX1-NEXT: retl
+;
+; X86-AVX2-LABEL: trunc_ashr_v4i64_demandedelts:
+; X86-AVX2: # %bb.0:
+; X86-AVX2-NEXT: vmovdqa {{.*#+}} ymm1 = [63,0,0,0,63,0,0,0]
+; X86-AVX2-NEXT: vpsllvq %ymm1, %ymm0, %ymm0
+; X86-AVX2-NEXT: vmovdqa {{.*#+}} ymm2 = [0,2147483648,0,2147483648,0,2147483648,0,2147483648]
+; X86-AVX2-NEXT: vpsrlvq %ymm1, %ymm2, %ymm3
+; X86-AVX2-NEXT: vpxor %ymm2, %ymm0, %ymm0
+; X86-AVX2-NEXT: vpsrlvq %ymm1, %ymm0, %ymm0
+; X86-AVX2-NEXT: vpsubq %ymm3, %ymm0, %ymm0
+; X86-AVX2-NEXT: vpshufb {{.*#+}} ymm0 = ymm0[0,1,0,1,0,1,0,1,0,1,0,1,0,1,2,3,16,17,16,17,16,17,16,17,16,17,16,17,16,17,18,19]
+; X86-AVX2-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; X86-AVX2-NEXT: # kill: def $xmm0 killed $xmm0 killed $ymm0
+; X86-AVX2-NEXT: vzeroupper
+; X86-AVX2-NEXT: retl
+;
+; X64-SSE-LABEL: trunc_ashr_v4i64_demandedelts:
+; X64-SSE: # %bb.0:
+; X64-SSE-NEXT: movdqa %xmm0, %xmm2
+; X64-SSE-NEXT: psllq $63, %xmm2
+; X64-SSE-NEXT: movdqa %xmm0, %xmm3
+; X64-SSE-NEXT: movsd {{.*#+}} xmm3 = xmm2[0],xmm3[1]
+; X64-SSE-NEXT: movdqa %xmm1, %xmm2
+; X64-SSE-NEXT: psllq $63, %xmm2
+; X64-SSE-NEXT: movdqa %xmm1, %xmm4
+; X64-SSE-NEXT: movsd {{.*#+}} xmm4 = xmm2[0],xmm4[1]
+; X64-SSE-NEXT: psrlq $63, %xmm4
+; X64-SSE-NEXT: movsd {{.*#+}} xmm1 = xmm4[0],xmm1[1]
+; X64-SSE-NEXT: movapd {{.*#+}} xmm2 = [1,9223372036854775808]
+; X64-SSE-NEXT: xorpd %xmm2, %xmm1
+; X64-SSE-NEXT: psubq %xmm2, %xmm1
+; X64-SSE-NEXT: psrlq $63, %xmm3
+; X64-SSE-NEXT: movsd {{.*#+}} xmm0 = xmm3[0],xmm0[1]
+; X64-SSE-NEXT: xorpd %xmm2, %xmm0
+; X64-SSE-NEXT: psubq %xmm2, %xmm0
+; X64-SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,0,0,0]
+; X64-SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,0,0,0]
+; X64-SSE-NEXT: pslld $16, %xmm1
+; X64-SSE-NEXT: psrad $16, %xmm1
+; X64-SSE-NEXT: pslld $16, %xmm0
+; X64-SSE-NEXT: psrad $16, %xmm0
+; X64-SSE-NEXT: packssdw %xmm1, %xmm0
+; X64-SSE-NEXT: retq
+;
+; X64-AVX1-LABEL: trunc_ashr_v4i64_demandedelts:
+; X64-AVX1: # %bb.0:
+; X64-AVX1-NEXT: vpsllq $63, %xmm0, %xmm1
+; X64-AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm0[4,5,6,7]
+; X64-AVX1-NEXT: vextractf128 $1, %ymm0, %xmm2
+; X64-AVX1-NEXT: vpsllq $63, %xmm2, %xmm3
+; X64-AVX1-NEXT: vpblendw {{.*#+}} xmm3 = xmm3[0,1,2,3],xmm2[4,5,6,7]
+; X64-AVX1-NEXT: vpsrlq $63, %xmm3, %xmm3
+; X64-AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm3[0,1,2,3],xmm2[4,5,6,7]
+; X64-AVX1-NEXT: vmovdqa {{.*#+}} xmm3 = [1,9223372036854775808]
+; X64-AVX1-NEXT: vpxor %xmm3, %xmm2, %xmm2
+; X64-AVX1-NEXT: vpsubq %xmm3, %xmm2, %xmm2
+; X64-AVX1-NEXT: vpsrlq $63, %xmm1, %xmm1
+; X64-AVX1-NEXT: vpblendw {{.*#+}} xmm0 = xmm1[0,1,2,3],xmm0[4,5,6,7]
+; X64-AVX1-NEXT: vpxor %xmm3, %xmm0, %xmm0
+; X64-AVX1-NEXT: vpsubq %xmm3, %xmm0, %xmm0
+; X64-AVX1-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
+; X64-AVX1-NEXT: vpermilps {{.*#+}} ymm0 = ymm0[0,0,0,0,4,4,4,4]
+; X64-AVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
+; X64-AVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [0,1,4,5,8,9,12,13,8,9,12,13,12,13,14,15]
+; X64-AVX1-NEXT: vpshufb %xmm2, %xmm1, %xmm1
+; X64-AVX1-NEXT: vpshufb %xmm2, %xmm0, %xmm0
+; X64-AVX1-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
+; X64-AVX1-NEXT: vzeroupper
+; X64-AVX1-NEXT: retq
+;
+; X64-AVX2-LABEL: trunc_ashr_v4i64_demandedelts:
+; X64-AVX2: # %bb.0:
+; X64-AVX2-NEXT: vpand {{.*}}(%rip), %ymm0, %ymm0
+; X64-AVX2-NEXT: vbroadcasti128 {{.*#+}} ymm1 = [1,9223372036854775808,1,9223372036854775808]
+; X64-AVX2-NEXT: # ymm1 = mem[0,1,0,1]
+; X64-AVX2-NEXT: vpxor %ymm1, %ymm0, %ymm0
+; X64-AVX2-NEXT: vpsubq %ymm1, %ymm0, %ymm0
+; X64-AVX2-NEXT: vpshufb {{.*#+}} ymm0 = ymm0[0,1,0,1,0,1,0,1,0,1,0,1,0,1,2,3,16,17,16,17,16,17,16,17,16,17,16,17,16,17,18,19]
+; X64-AVX2-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,2,3]
+; X64-AVX2-NEXT: # kill: def $xmm0 killed $xmm0 killed $ymm0
+; X64-AVX2-NEXT: vzeroupper
+; X64-AVX2-NEXT: retq
+ %1 = shl <4 x i64> %a0, <i64 63, i64 0, i64 63, i64 0>
+ %2 = ashr exact <4 x i64> %1, <i64 63, i64 0, i64 63, i64 0>
+ %3 = bitcast <4 x i64> %2 to <8 x i32>
+ %4 = shufflevector <8 x i32> %3, <8 x i32> undef, <8 x i32> <i32 0, i32 0, i32 0, i32 0, i32 4, i32 4, i32 4, i32 4>
+ %5 = trunc <8 x i32> %4 to <8 x i16>
+ ret <8 x i16> %5
+}
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