[X86][SSE] Add PACKSS test showing ComputeNumSignBits failure to handle demanded elts through a bitcast

llvm-svn: 340139
This commit is contained in:
Simon Pilgrim 2018-08-19 16:01:47 +00:00
parent a09ae4b8a6
commit 0fd72ab44f
1 changed files with 143 additions and 0 deletions

View File

@ -103,3 +103,146 @@ define <8 x i16> @trunc_ashr_v4i32_icmp_v4i32(<4 x i32> %a, <4 x i32> %b) nounwi
%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
}