| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX1 |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX2 |
| |
| ; fold (srem x, 1) -> 0 |
| define i32 @combine_srem_by_one(i32 %x) { |
| ; CHECK-LABEL: combine_srem_by_one: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: retq |
| %1 = srem i32 %x, 1 |
| ret i32 %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_one(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_one: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: xorps %xmm0, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_vec_srem_by_one: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 1, i32 1, i32 1, i32 1> |
| ret <4 x i32> %1 |
| } |
| |
| ; fold (srem x, -1) -> 0 |
| define i32 @combine_srem_by_negone(i32 %x) { |
| ; CHECK-LABEL: combine_srem_by_negone: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xorl %eax, %eax |
| ; CHECK-NEXT: retq |
| %1 = srem i32 %x, -1 |
| ret i32 %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_negone(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_negone: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: xorps %xmm0, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_vec_srem_by_negone: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1> |
| ret <4 x i32> %1 |
| } |
| |
| ; TODO fold (srem x, INT_MIN) |
| define i32 @combine_srem_by_minsigned(i32 %x) { |
| ; CHECK-LABEL: combine_srem_by_minsigned: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: # kill: def $edi killed $edi def $rdi |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: sarl $31, %eax |
| ; CHECK-NEXT: shrl %eax |
| ; CHECK-NEXT: addl %edi, %eax |
| ; CHECK-NEXT: andl $-2147483648, %eax # imm = 0x80000000 |
| ; CHECK-NEXT: leal (%rax,%rdi), %eax |
| ; CHECK-NEXT: retq |
| %1 = srem i32 %x, -2147483648 |
| ret i32 %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_minsigned(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_minsigned: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movdqa %xmm0, %xmm1 |
| ; SSE-NEXT: psrad $31, %xmm1 |
| ; SSE-NEXT: psrld $1, %xmm1 |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: pand {{.*}}(%rip), %xmm1 |
| ; SSE-NEXT: psubd %xmm1, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX1-LABEL: combine_vec_srem_by_minsigned: |
| ; AVX1: # %bb.0: |
| ; AVX1-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrld $1, %xmm1, %xmm1 |
| ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX1-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX1-NEXT: retq |
| ; |
| ; AVX2-LABEL: combine_vec_srem_by_minsigned: |
| ; AVX2: # %bb.0: |
| ; AVX2-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpsrld $1, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [2147483648,2147483648,2147483648,2147483648] |
| ; AVX2-NEXT: vpand %xmm2, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX2-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648> |
| ret <4 x i32> %1 |
| } |
| |
| ; TODO fold (srem x, x) -> 0 |
| define i32 @combine_srem_dupe(i32 %x) { |
| ; CHECK-LABEL: combine_srem_dupe: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl %edi, %eax |
| ; CHECK-NEXT: cltd |
| ; CHECK-NEXT: idivl %edi |
| ; CHECK-NEXT: movl %edx, %eax |
| ; CHECK-NEXT: retq |
| %1 = srem i32 %x, %x |
| ret i32 %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_dupe(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_dupe: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: pextrd $1, %xmm0, %ecx |
| ; SSE-NEXT: movl %ecx, %eax |
| ; SSE-NEXT: cltd |
| ; SSE-NEXT: idivl %ecx |
| ; SSE-NEXT: movl %edx, %ecx |
| ; SSE-NEXT: movd %xmm0, %esi |
| ; SSE-NEXT: movl %esi, %eax |
| ; SSE-NEXT: cltd |
| ; SSE-NEXT: idivl %esi |
| ; SSE-NEXT: movd %edx, %xmm1 |
| ; SSE-NEXT: pinsrd $1, %ecx, %xmm1 |
| ; SSE-NEXT: pextrd $2, %xmm0, %ecx |
| ; SSE-NEXT: movl %ecx, %eax |
| ; SSE-NEXT: cltd |
| ; SSE-NEXT: idivl %ecx |
| ; SSE-NEXT: pinsrd $2, %edx, %xmm1 |
| ; SSE-NEXT: pextrd $3, %xmm0, %ecx |
| ; SSE-NEXT: movl %ecx, %eax |
| ; SSE-NEXT: cltd |
| ; SSE-NEXT: idivl %ecx |
| ; SSE-NEXT: pinsrd $3, %edx, %xmm1 |
| ; SSE-NEXT: movdqa %xmm1, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_vec_srem_dupe: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vpextrd $1, %xmm0, %ecx |
| ; AVX-NEXT: movl %ecx, %eax |
| ; AVX-NEXT: cltd |
| ; AVX-NEXT: idivl %ecx |
| ; AVX-NEXT: movl %edx, %ecx |
| ; AVX-NEXT: vmovd %xmm0, %esi |
| ; AVX-NEXT: movl %esi, %eax |
| ; AVX-NEXT: cltd |
| ; AVX-NEXT: idivl %esi |
| ; AVX-NEXT: vmovd %edx, %xmm1 |
| ; AVX-NEXT: vpinsrd $1, %ecx, %xmm1, %xmm1 |
| ; AVX-NEXT: vpextrd $2, %xmm0, %ecx |
| ; AVX-NEXT: movl %ecx, %eax |
| ; AVX-NEXT: cltd |
| ; AVX-NEXT: idivl %ecx |
| ; AVX-NEXT: vpinsrd $2, %edx, %xmm1, %xmm1 |
| ; AVX-NEXT: vpextrd $3, %xmm0, %ecx |
| ; AVX-NEXT: movl %ecx, %eax |
| ; AVX-NEXT: cltd |
| ; AVX-NEXT: idivl %ecx |
| ; AVX-NEXT: vpinsrd $3, %edx, %xmm1, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = srem <4 x i32> %x, %x |
| ret <4 x i32> %1 |
| } |
| |
| ; fold (srem x, y) -> (urem x, y) iff x and y are positive |
| define <4 x i32> @combine_vec_srem_by_pos0(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pos0: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: andps {{.*}}(%rip), %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX1-LABEL: combine_vec_srem_by_pos0: |
| ; AVX1: # %bb.0: |
| ; AVX1-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0 |
| ; AVX1-NEXT: retq |
| ; |
| ; AVX2-LABEL: combine_vec_srem_by_pos0: |
| ; AVX2: # %bb.0: |
| ; AVX2-NEXT: vbroadcastss {{.*#+}} xmm1 = [3,3,3,3] |
| ; AVX2-NEXT: vandps %xmm1, %xmm0, %xmm0 |
| ; AVX2-NEXT: retq |
| %1 = and <4 x i32> %x, <i32 255, i32 255, i32 255, i32 255> |
| %2 = srem <4 x i32> %1, <i32 4, i32 4, i32 4, i32 4> |
| ret <4 x i32> %2 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_pos1(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pos1: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: andps {{.*}}(%rip), %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_vec_srem_by_pos1: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = and <4 x i32> %x, <i32 255, i32 255, i32 255, i32 255> |
| %2 = srem <4 x i32> %1, <i32 1, i32 4, i32 8, i32 16> |
| ret <4 x i32> %2 |
| } |
| |
| ; fold (srem x, (1 << c)) -> x - (x / (1 << c)) * (1 << c). |
| define <4 x i32> @combine_vec_srem_by_pow2a(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pow2a: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movdqa %xmm0, %xmm1 |
| ; SSE-NEXT: psrad $31, %xmm1 |
| ; SSE-NEXT: psrld $30, %xmm1 |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: pand {{.*}}(%rip), %xmm1 |
| ; SSE-NEXT: psubd %xmm1, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX1-LABEL: combine_vec_srem_by_pow2a: |
| ; AVX1: # %bb.0: |
| ; AVX1-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrld $30, %xmm1, %xmm1 |
| ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX1-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX1-NEXT: retq |
| ; |
| ; AVX2-LABEL: combine_vec_srem_by_pow2a: |
| ; AVX2: # %bb.0: |
| ; AVX2-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpsrld $30, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [4294967292,4294967292,4294967292,4294967292] |
| ; AVX2-NEXT: vpand %xmm2, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX2-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 4, i32 4, i32 4, i32 4> |
| ret <4 x i32> %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_pow2a_neg(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pow2a_neg: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movdqa %xmm0, %xmm1 |
| ; SSE-NEXT: psrad $31, %xmm1 |
| ; SSE-NEXT: psrld $30, %xmm1 |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: psrad $2, %xmm1 |
| ; SSE-NEXT: pxor %xmm2, %xmm2 |
| ; SSE-NEXT: psubd %xmm1, %xmm2 |
| ; SSE-NEXT: pslld $2, %xmm2 |
| ; SSE-NEXT: paddd %xmm2, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX-LABEL: combine_vec_srem_by_pow2a_neg: |
| ; AVX: # %bb.0: |
| ; AVX-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX-NEXT: vpsrld $30, %xmm1, %xmm1 |
| ; AVX-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX-NEXT: vpsrad $2, %xmm1, %xmm1 |
| ; AVX-NEXT: vpxor %xmm2, %xmm2, %xmm2 |
| ; AVX-NEXT: vpsubd %xmm1, %xmm2, %xmm1 |
| ; AVX-NEXT: vpslld $2, %xmm1, %xmm1 |
| ; AVX-NEXT: vpaddd %xmm1, %xmm0, %xmm0 |
| ; AVX-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 -4, i32 -4, i32 -4, i32 -4> |
| ret <4 x i32> %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_pow2b(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pow2b: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movdqa %xmm0, %xmm1 |
| ; SSE-NEXT: psrld $31, %xmm1 |
| ; SSE-NEXT: movdqa %xmm0, %xmm2 |
| ; SSE-NEXT: psrad $31, %xmm2 |
| ; SSE-NEXT: movdqa %xmm2, %xmm3 |
| ; SSE-NEXT: psrld $29, %xmm3 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm1[0,1,2,3],xmm3[4,5,6,7] |
| ; SSE-NEXT: psrld $30, %xmm2 |
| ; SSE-NEXT: pxor %xmm1, %xmm1 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7] |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1],xmm3[2,3],xmm1[4,5],xmm3[6,7] |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: movdqa %xmm1, %xmm2 |
| ; SSE-NEXT: movdqa %xmm1, %xmm3 |
| ; SSE-NEXT: psrad $2, %xmm3 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm1[0,1,2,3],xmm3[4,5,6,7] |
| ; SSE-NEXT: psrad $3, %xmm1 |
| ; SSE-NEXT: psrad $1, %xmm2 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm2 = xmm2[0,1,2,3],xmm1[4,5,6,7] |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm3[0,1],xmm2[2,3],xmm3[4,5],xmm2[6,7] |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm0[0,1],xmm3[2,3,4,5,6,7] |
| ; SSE-NEXT: pmulld {{.*}}(%rip), %xmm3 |
| ; SSE-NEXT: psubd %xmm3, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX1-LABEL: combine_vec_srem_by_pow2b: |
| ; AVX1: # %bb.0: |
| ; AVX1-NEXT: vpsrld $31, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrad $31, %xmm0, %xmm2 |
| ; AVX1-NEXT: vpsrld $29, %xmm2, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm3[4,5,6,7] |
| ; AVX1-NEXT: vpsrld $30, %xmm2, %xmm2 |
| ; AVX1-NEXT: vpxor %xmm3, %xmm3, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm2[0,1],xmm1[2,3],xmm2[4,5],xmm1[6,7] |
| ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrad $3, %xmm1, %xmm2 |
| ; AVX1-NEXT: vpsrad $1, %xmm1, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; AVX1-NEXT: vpsrad $2, %xmm1, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm3[4,5,6,7] |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3],xmm1[4,5],xmm2[6,7] |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm0[0,1],xmm1[2,3,4,5,6,7] |
| ; AVX1-NEXT: vpmulld {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX1-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX1-NEXT: retq |
| ; |
| ; AVX2-LABEL: combine_vec_srem_by_pow2b: |
| ; AVX2: # %bb.0: |
| ; AVX2-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpsrlvd {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [0,1,2,3] |
| ; AVX2-NEXT: vpsravd %xmm2, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpblendd {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3] |
| ; AVX2-NEXT: vpsllvd %xmm2, %xmm1, %xmm1 |
| ; AVX2-NEXT: vpsubd %xmm1, %xmm0, %xmm0 |
| ; AVX2-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 1, i32 2, i32 4, i32 8> |
| ret <4 x i32> %1 |
| } |
| |
| define <4 x i32> @combine_vec_srem_by_pow2b_neg(<4 x i32> %x) { |
| ; SSE-LABEL: combine_vec_srem_by_pow2b_neg: |
| ; SSE: # %bb.0: |
| ; SSE-NEXT: movdqa %xmm0, %xmm1 |
| ; SSE-NEXT: psrad $31, %xmm1 |
| ; SSE-NEXT: movdqa %xmm1, %xmm2 |
| ; SSE-NEXT: psrld $28, %xmm2 |
| ; SSE-NEXT: movdqa %xmm1, %xmm3 |
| ; SSE-NEXT: psrld $30, %xmm3 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; SSE-NEXT: movdqa %xmm0, %xmm2 |
| ; SSE-NEXT: psrld $31, %xmm2 |
| ; SSE-NEXT: psrld $29, %xmm1 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm2[0,1,2,3],xmm1[4,5,6,7] |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1],xmm3[2,3],xmm1[4,5],xmm3[6,7] |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: movdqa %xmm1, %xmm2 |
| ; SSE-NEXT: psrad $4, %xmm2 |
| ; SSE-NEXT: movdqa %xmm1, %xmm3 |
| ; SSE-NEXT: psrad $2, %xmm3 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; SSE-NEXT: movdqa %xmm1, %xmm2 |
| ; SSE-NEXT: psrad $3, %xmm2 |
| ; SSE-NEXT: psrad $1, %xmm1 |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7] |
| ; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1],xmm3[2,3],xmm1[4,5],xmm3[6,7] |
| ; SSE-NEXT: pmulld {{.*}}(%rip), %xmm1 |
| ; SSE-NEXT: paddd %xmm0, %xmm1 |
| ; SSE-NEXT: movdqa %xmm1, %xmm0 |
| ; SSE-NEXT: retq |
| ; |
| ; AVX1-LABEL: combine_vec_srem_by_pow2b_neg: |
| ; AVX1: # %bb.0: |
| ; AVX1-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrld $28, %xmm1, %xmm2 |
| ; AVX1-NEXT: vpsrld $30, %xmm1, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; AVX1-NEXT: vpsrld $31, %xmm0, %xmm3 |
| ; AVX1-NEXT: vpsrld $29, %xmm1, %xmm1 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm3[0,1,2,3],xmm1[4,5,6,7] |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3],xmm1[4,5],xmm2[6,7] |
| ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX1-NEXT: vpsrad $4, %xmm1, %xmm2 |
| ; AVX1-NEXT: vpsrad $2, %xmm1, %xmm3 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm3[0,1,2,3],xmm2[4,5,6,7] |
| ; AVX1-NEXT: vpsrad $3, %xmm1, %xmm3 |
| ; AVX1-NEXT: vpsrad $1, %xmm1, %xmm1 |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm3[4,5,6,7] |
| ; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3],xmm1[4,5],xmm2[6,7] |
| ; AVX1-NEXT: vpmulld {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm0 |
| ; AVX1-NEXT: retq |
| ; |
| ; AVX2-LABEL: combine_vec_srem_by_pow2b_neg: |
| ; AVX2: # %bb.0: |
| ; AVX2-NEXT: vpsrad $31, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpsrlvd {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm1 |
| ; AVX2-NEXT: vpsravd {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX2-NEXT: vpmulld {{.*}}(%rip), %xmm1, %xmm1 |
| ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm0 |
| ; AVX2-NEXT: retq |
| %1 = srem <4 x i32> %x, <i32 -2, i32 -4, i32 -8, i32 -16> |
| ret <4 x i32> %1 |
| } |
| |
| ; OSS-Fuzz #6883 |
| ; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6883 |
| define i32 @ossfuzz6883() { |
| ; CHECK-LABEL: ossfuzz6883: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: movl (%rax), %ecx |
| ; CHECK-NEXT: movl %ecx, %eax |
| ; CHECK-NEXT: cltd |
| ; CHECK-NEXT: idivl %ecx |
| ; CHECK-NEXT: movl %edx, %esi |
| ; CHECK-NEXT: movl $1, %edi |
| ; CHECK-NEXT: cltd |
| ; CHECK-NEXT: idivl %edi |
| ; CHECK-NEXT: movl %edx, %edi |
| ; CHECK-NEXT: xorl %edx, %edx |
| ; CHECK-NEXT: movl %ecx, %eax |
| ; CHECK-NEXT: divl %edi |
| ; CHECK-NEXT: andl %esi, %eax |
| ; CHECK-NEXT: retq |
| %B17 = or i32 0, 2147483647 |
| %L6 = load i32, i32* undef |
| %B11 = sdiv i32 %L6, %L6 |
| %B13 = udiv i32 %B17, %B17 |
| %B14 = srem i32 %B11, %B13 |
| %B16 = srem i32 %L6, %L6 |
| %B10 = udiv i32 %L6, %B14 |
| %B6 = and i32 %B16, %B10 |
| ret i32 %B6 |
| } |
