; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=CHECK,CHECK-NOBMI,CHECK-NOBMI-SSE2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2 | FileCheck %s --check-prefixes=CHECK,CHECK-BMI2,CHECK-BMI2-SSE2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2,+avx2 | FileCheck %s --check-prefixes=CHECK,CHECK-BMI2,CHECK-AVX,CHECK-AVX2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+bmi2,+avx512f,+avx512vl | FileCheck %s --check-prefixes=CHECK,CHECK-BMI2,CHECK-AVX,CHECK-AVX512 declare <4 x i32> @llvm.fshl.v4i32(<4 x i32>, <4 x i32>, <4 x i32>) declare <4 x i32> @llvm.fshr.v4i32(<4 x i32>, <4 x i32>, <4 x i32>) declare <16 x i16> @llvm.fshl.v16i16(<16 x i16>, <16 x i16>, <16 x i16>) declare <16 x i16> @llvm.fshr.v16i16(<16 x i16>, <16 x i16>, <16 x i16>) declare i64 @llvm.fshl.i64(i64, i64, i64) declare i64 @llvm.fshr.i64(i64, i64, i64) declare i32 @llvm.fshl.i32(i32, i32, i32) declare i32 @llvm.fshr.i32(i32, i32, i32) declare i16 @llvm.fshl.i16(i16, i16, i16) declare i16 @llvm.fshr.i16(i16, i16, i16) declare i8 @llvm.fshl.i8(i8, i8, i8) declare i8 @llvm.fshr.i8(i8, i8, i8) define i1 @shr_to_shl_eq_i8_s2(i8 %x) { ; CHECK-LABEL: shr_to_shl_eq_i8_s2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: rolb $2, %al ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i8 %x, 63 %shr = lshr i8 %x, 2 %r = icmp eq i8 %and, %shr ret i1 %r } define i1 @shl_to_shr_ne_i8_s7(i8 %x) { ; CHECK-LABEL: shl_to_shr_ne_i8_s7: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrb $7, %al ; CHECK-NEXT: andb $1, %dil ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %shl = shl i8 %x, 7 %and = and i8 %x, 128 %r = icmp ne i8 %shl, %and ret i1 %r } define i1 @rorl_to_srl_ne_i8_s5_fail(i8 %x) { ; CHECK-LABEL: rorl_to_srl_ne_i8_s5_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: rolb $5, %al ; CHECK-NEXT: cmpb %dil, %al ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %ror = call i8 @llvm.fshl.i8(i8 %x, i8 %x, i8 5) %r = icmp ne i8 %ror, %x ret i1 %r } define i1 @shr_to_shl_eq_i8_s1(i8 %x) { ; CHECK-LABEL: shr_to_shl_eq_i8_s1: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: rolb %al ; CHECK-NEXT: cmpb %al, %dil ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i8 %x, 127 %shr = lshr i8 %x, 1 %r = icmp eq i8 %and, %shr ret i1 %r } define i1 @shr_to_shl_eq_i32_s3(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i32_s3: ; CHECK: # %bb.0: ; CHECK-NEXT: # kill: def $edi killed $edi def $rdi ; CHECK-NEXT: leal (,%rdi,8), %eax ; CHECK-NEXT: andl $-8, %edi ; CHECK-NEXT: cmpl %eax, %edi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 536870911 %shr = lshr i32 %x, 3 %r = icmp eq i32 %and, %shr ret i1 %r } define i1 @shl_to_shr_eq_i32_s3_fail(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s3_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $536870911, %eax # imm = 0x1FFFFFFF ; CHECK-NEXT: shll $3, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 536870911 %shr = shl i32 %x, 3 %r = icmp eq i32 %and, %shr ret i1 %r } define i1 @shl_to_shr_ne_i32_s16(i32 %x) { ; CHECK-NOBMI-LABEL: shl_to_shr_ne_i32_s16: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movzwl %di, %eax ; CHECK-NOBMI-NEXT: shrl $16, %edi ; CHECK-NOBMI-NEXT: cmpl %edi, %eax ; CHECK-NOBMI-NEXT: setne %al ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-LABEL: shl_to_shr_ne_i32_s16: ; CHECK-BMI2: # %bb.0: ; CHECK-BMI2-NEXT: rorxl $16, %edi, %eax ; CHECK-BMI2-NEXT: cmpl %eax, %edi ; CHECK-BMI2-NEXT: setne %al ; CHECK-BMI2-NEXT: retq %shl = shl i32 %x, 16 %and = and i32 %x, 4294901760 %r = icmp ne i32 %shl, %and ret i1 %r } define i1 @shl_to_shr_ne_i32_s16_fail(i32 %x) { ; CHECK-LABEL: shl_to_shr_ne_i32_s16_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shll $16, %eax ; CHECK-NEXT: andl $2147450880, %edi # imm = 0x7FFF8000 ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %shl = shl i32 %x, 16 %and = and i32 %x, 2147450880 %r = icmp ne i32 %shl, %and ret i1 %r } define i1 @shr_to_shl_eq_i16_s1(i16 %x) { ; CHECK-LABEL: shr_to_shl_eq_i16_s1: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: rolw %ax ; CHECK-NEXT: cmpw %ax, %di ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i16 %x, 32767 %shr = lshr i16 %x, 1 %r = icmp eq i16 %and, %shr ret i1 %r } define i1 @shr_to_shl_eq_i16_s1_fail(i16 %x) { ; CHECK-LABEL: shr_to_shl_eq_i16_s1_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movzwl %di, %eax ; CHECK-NEXT: andl $32766, %edi # imm = 0x7FFE ; CHECK-NEXT: shrl %eax ; CHECK-NEXT: cmpw %ax, %di ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i16 %x, 32766 %shr = lshr i16 %x, 1 %r = icmp eq i16 %and, %shr ret i1 %r } define i1 @shl_to_shr_eq_i64_s44(i64 %x) { ; CHECK-LABEL: shl_to_shr_eq_i64_s44: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: shrq $44, %rax ; CHECK-NEXT: andl $1048575, %edi # imm = 0xFFFFF ; CHECK-NEXT: cmpq %rax, %rdi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %shl = shl i64 %x, 44 %and = and i64 %x, 18446726481523507200 %r = icmp eq i64 %shl, %and ret i1 %r } define i1 @shr_to_shl_ne_i64_s32(i64 %x) { ; CHECK-NOBMI-LABEL: shr_to_shl_ne_i64_s32: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movl %edi, %eax ; CHECK-NOBMI-NEXT: shrq $32, %rdi ; CHECK-NOBMI-NEXT: cmpq %rdi, %rax ; CHECK-NOBMI-NEXT: setne %al ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-LABEL: shr_to_shl_ne_i64_s32: ; CHECK-BMI2: # %bb.0: ; CHECK-BMI2-NEXT: rorxq $32, %rdi, %rax ; CHECK-BMI2-NEXT: cmpq %rax, %rdi ; CHECK-BMI2-NEXT: setne %al ; CHECK-BMI2-NEXT: retq %and = and i64 %x, 4294967295 %shr = lshr i64 %x, 32 %r = icmp ne i64 %and, %shr ret i1 %r } define i1 @rorl_to_shl_eq_i64_s16(i64 %x) { ; CHECK-NOBMI-LABEL: rorl_to_shl_eq_i64_s16: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movq %rdi, %rax ; CHECK-NOBMI-NEXT: rolq $16, %rax ; CHECK-NOBMI-NEXT: cmpq %rdi, %rax ; CHECK-NOBMI-NEXT: sete %al ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-LABEL: rorl_to_shl_eq_i64_s16: ; CHECK-BMI2: # %bb.0: ; CHECK-BMI2-NEXT: rorxq $48, %rdi, %rax ; CHECK-BMI2-NEXT: cmpq %rdi, %rax ; CHECK-BMI2-NEXT: sete %al ; CHECK-BMI2-NEXT: retq %ror = call i64 @llvm.fshl.i64(i64 %x, i64 %x, i64 16) %r = icmp eq i64 %ror, %x ret i1 %r } define i1 @ashr_to_shl_ne_i64_s32_fail(i64 %x) { ; CHECK-LABEL: ashr_to_shl_ne_i64_s32_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: sarq $32, %rdi ; CHECK-NEXT: cmpq %rdi, %rax ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %and = and i64 %x, 4294967295 %shr = ashr i64 %x, 32 %r = icmp ne i64 %and, %shr ret i1 %r } define i1 @shl_to_shr_eq_i64_s63(i64 %x) { ; CHECK-LABEL: shl_to_shr_eq_i64_s63: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: shrq $63, %rax ; CHECK-NEXT: andl $1, %edi ; CHECK-NEXT: cmpq %rax, %rdi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %shl = shl i64 %x, 63 %and = and i64 %x, 9223372036854775808 %r = icmp eq i64 %shl, %and ret i1 %r } define i1 @shl_to_shr_eq_i64_s63_fail(i64 %x) { ; CHECK-LABEL: shl_to_shr_eq_i64_s63_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movabsq $-9223372036854775808, %rax # imm = 0x8000000000000000 ; CHECK-NEXT: andq %rdi, %rax ; CHECK-NEXT: shlq $63, %rdi ; CHECK-NEXT: cmpq %rax, %rdi ; CHECK-NEXT: seta %al ; CHECK-NEXT: retq %shl = shl i64 %x, 63 %and = and i64 %x, 9223372036854775808 %r = icmp ugt i64 %shl, %and ret i1 %r } define i1 @shr_to_shl_eq_i64_s7(i64 %x) { ; CHECK-LABEL: shr_to_shl_eq_i64_s7: ; CHECK: # %bb.0: ; CHECK-NEXT: movq %rdi, %rax ; CHECK-NEXT: shlq $7, %rax ; CHECK-NEXT: andq $-128, %rdi ; CHECK-NEXT: cmpq %rax, %rdi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i64 %x, 144115188075855871 %shr = lshr i64 %x, 7 %r = icmp eq i64 %and, %shr ret i1 %r } define i1 @shl_to_shr_ne_i32_s24(i32 %x) { ; CHECK-LABEL: shl_to_shr_ne_i32_s24: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl %dil, %eax ; CHECK-NEXT: shrl $24, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %shl = shl i32 %x, 24 %and = and i32 %x, 4278190080 %r = icmp ne i32 %shl, %and ret i1 %r } define i1 @shr_to_shl_ne_i32_s24_fail(i32 %x) { ; CHECK-LABEL: shr_to_shl_ne_i32_s24_fail: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrl $24, %eax ; CHECK-NEXT: andl $-16777216, %edi # imm = 0xFF000000 ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: setne %al ; CHECK-NEXT: retq %shl = lshr i32 %x, 24 %and = and i32 %x, 4278190080 %r = icmp ne i32 %shl, %and ret i1 %r } define i1 @shr_to_shl_ne_i32_s8(i32 %x) { ; CHECK-NOBMI-LABEL: shr_to_shl_ne_i32_s8: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movl %edi, %eax ; CHECK-NOBMI-NEXT: roll $8, %eax ; CHECK-NOBMI-NEXT: cmpl %eax, %edi ; CHECK-NOBMI-NEXT: setne %al ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-LABEL: shr_to_shl_ne_i32_s8: ; CHECK-BMI2: # %bb.0: ; CHECK-BMI2-NEXT: rorxl $24, %edi, %eax ; CHECK-BMI2-NEXT: cmpl %eax, %edi ; CHECK-BMI2-NEXT: setne %al ; CHECK-BMI2-NEXT: retq %and = and i32 %x, 16777215 %shr = lshr i32 %x, 8 %r = icmp ne i32 %and, %shr ret i1 %r } define <4 x i1> @shr_to_ror_eq_4xi32_s4(<4 x i32> %x) { ; CHECK-NOBMI-LABEL: shr_to_ror_eq_4xi32_s4: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm1 ; CHECK-NOBMI-NEXT: psrld $4, %xmm1 ; CHECK-NOBMI-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-NOBMI-NEXT: pxor %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-SSE2-LABEL: shr_to_ror_eq_4xi32_s4: ; CHECK-BMI2-SSE2: # %bb.0: ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm1 ; CHECK-BMI2-SSE2-NEXT: psrld $4, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pxor %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: retq ; ; CHECK-AVX2-LABEL: shr_to_ror_eq_4xi32_s4: ; CHECK-AVX2: # %bb.0: ; CHECK-AVX2-NEXT: vpsrld $4, %xmm0, %xmm1 ; CHECK-AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [268435455,268435455,268435455,268435455] ; CHECK-AVX2-NEXT: vpand %xmm2, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; CHECK-AVX2-NEXT: vpxor %xmm1, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: retq ; ; CHECK-AVX512-LABEL: shr_to_ror_eq_4xi32_s4: ; CHECK-AVX512: # %bb.0: ; CHECK-AVX512-NEXT: vprold $4, %xmm0, %xmm1 ; CHECK-AVX512-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: vpternlogq $15, %xmm0, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: retq %shr = lshr <4 x i32> %x, %and = and <4 x i32> %x, %r = icmp ne <4 x i32> %shr, %and ret <4 x i1> %r } define <4 x i1> @shl_to_ror_eq_4xi32_s8(<4 x i32> %x) { ; CHECK-NOBMI-LABEL: shl_to_ror_eq_4xi32_s8: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm1 ; CHECK-NOBMI-NEXT: pslld $8, %xmm1 ; CHECK-NOBMI-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-NOBMI-NEXT: pxor %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-SSE2-LABEL: shl_to_ror_eq_4xi32_s8: ; CHECK-BMI2-SSE2: # %bb.0: ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pslld $8, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pxor %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: retq ; ; CHECK-AVX2-LABEL: shl_to_ror_eq_4xi32_s8: ; CHECK-AVX2: # %bb.0: ; CHECK-AVX2-NEXT: vpslld $8, %xmm0, %xmm1 ; CHECK-AVX2-NEXT: vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; CHECK-AVX2-NEXT: vpxor %xmm1, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: retq ; ; CHECK-AVX512-LABEL: shl_to_ror_eq_4xi32_s8: ; CHECK-AVX512: # %bb.0: ; CHECK-AVX512-NEXT: vprold $8, %xmm0, %xmm1 ; CHECK-AVX512-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: vpternlogq $15, %xmm0, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: retq %shr = shl <4 x i32> %x, %and = and <4 x i32> %x, %r = icmp ne <4 x i32> %shr, %and ret <4 x i1> %r } define <4 x i1> @shl_to_ror_eq_4xi32_s7_fail_no_p2(<4 x i32> %x) { ; CHECK-NOBMI-LABEL: shl_to_ror_eq_4xi32_s7_fail_no_p2: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm1 ; CHECK-NOBMI-NEXT: pslld $7, %xmm1 ; CHECK-NOBMI-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-NOBMI-NEXT: pxor %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-SSE2-LABEL: shl_to_ror_eq_4xi32_s7_fail_no_p2: ; CHECK-BMI2-SSE2: # %bb.0: ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pslld $7, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pxor %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: retq ; ; CHECK-AVX2-LABEL: shl_to_ror_eq_4xi32_s7_fail_no_p2: ; CHECK-AVX2: # %bb.0: ; CHECK-AVX2-NEXT: vpslld $7, %xmm0, %xmm1 ; CHECK-AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [4294967168,4294967168,4294967168,4294967168] ; CHECK-AVX2-NEXT: vpand %xmm2, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; CHECK-AVX2-NEXT: vpxor %xmm1, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: retq ; ; CHECK-AVX512-LABEL: shl_to_ror_eq_4xi32_s7_fail_no_p2: ; CHECK-AVX512: # %bb.0: ; CHECK-AVX512-NEXT: vpslld $7, %xmm0, %xmm1 ; CHECK-AVX512-NEXT: vpandd {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to4}, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX512-NEXT: vpternlogq $15, %xmm0, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: retq %shr = shl <4 x i32> %x, %and = and <4 x i32> %x, %r = icmp ne <4 x i32> %shr, %and ret <4 x i1> %r } define <4 x i1> @shr_to_ror_eq_4xi32_s4_fail_no_splat(<4 x i32> %x) { ; CHECK-NOBMI-LABEL: shr_to_ror_eq_4xi32_s4_fail_no_splat: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm1 ; CHECK-NOBMI-NEXT: psrld $4, %xmm1 ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm2 ; CHECK-NOBMI-NEXT: psrld $8, %xmm2 ; CHECK-NOBMI-NEXT: shufps {{.*#+}} xmm2 = xmm2[3,0],xmm1[2,0] ; CHECK-NOBMI-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,0] ; CHECK-NOBMI-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-NOBMI-NEXT: pxor %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-SSE2-LABEL: shr_to_ror_eq_4xi32_s4_fail_no_splat: ; CHECK-BMI2-SSE2: # %bb.0: ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm1 ; CHECK-BMI2-SSE2-NEXT: psrld $4, %xmm1 ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm2 ; CHECK-BMI2-SSE2-NEXT: psrld $8, %xmm2 ; CHECK-BMI2-SSE2-NEXT: shufps {{.*#+}} xmm2 = xmm2[3,0],xmm1[2,0] ; CHECK-BMI2-SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,0] ; CHECK-BMI2-SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pxor %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: retq ; ; CHECK-AVX2-LABEL: shr_to_ror_eq_4xi32_s4_fail_no_splat: ; CHECK-AVX2: # %bb.0: ; CHECK-AVX2-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1 ; CHECK-AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [268435455,268435455,268435455,268435455] ; CHECK-AVX2-NEXT: vpand %xmm2, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; CHECK-AVX2-NEXT: vpxor %xmm1, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: retq ; ; CHECK-AVX512-LABEL: shr_to_ror_eq_4xi32_s4_fail_no_splat: ; CHECK-AVX512: # %bb.0: ; CHECK-AVX512-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1 ; CHECK-AVX512-NEXT: vpandd {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to4}, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: vpcmpeqd %xmm0, %xmm1, %xmm0 ; CHECK-AVX512-NEXT: vpternlogq $15, %xmm0, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: retq %shr = lshr <4 x i32> %x, %and = and <4 x i32> %x, %r = icmp ne <4 x i32> %shr, %and ret <4 x i1> %r } define <16 x i1> @shl_to_ror_eq_16xi16_s8_fail_preserve_i16(<16 x i16> %x) { ; CHECK-NOBMI-LABEL: shl_to_ror_eq_16xi16_s8_fail_preserve_i16: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movdqa %xmm0, %xmm2 ; CHECK-NOBMI-NEXT: psllw $8, %xmm2 ; CHECK-NOBMI-NEXT: movdqa %xmm1, %xmm3 ; CHECK-NOBMI-NEXT: psllw $8, %xmm3 ; CHECK-NOBMI-NEXT: movdqa {{.*#+}} xmm4 = [0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255] ; CHECK-NOBMI-NEXT: pand %xmm4, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqw %xmm2, %xmm0 ; CHECK-NOBMI-NEXT: pand %xmm4, %xmm1 ; CHECK-NOBMI-NEXT: pcmpeqw %xmm3, %xmm1 ; CHECK-NOBMI-NEXT: packsswb %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-NOBMI-NEXT: pxor %xmm1, %xmm0 ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-SSE2-LABEL: shl_to_ror_eq_16xi16_s8_fail_preserve_i16: ; CHECK-BMI2-SSE2: # %bb.0: ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm0, %xmm2 ; CHECK-BMI2-SSE2-NEXT: psllw $8, %xmm2 ; CHECK-BMI2-SSE2-NEXT: movdqa %xmm1, %xmm3 ; CHECK-BMI2-SSE2-NEXT: psllw $8, %xmm3 ; CHECK-BMI2-SSE2-NEXT: movdqa {{.*#+}} xmm4 = [0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255] ; CHECK-BMI2-SSE2-NEXT: pand %xmm4, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqw %xmm2, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pand %xmm4, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pcmpeqw %xmm3, %xmm1 ; CHECK-BMI2-SSE2-NEXT: packsswb %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: pcmpeqd %xmm1, %xmm1 ; CHECK-BMI2-SSE2-NEXT: pxor %xmm1, %xmm0 ; CHECK-BMI2-SSE2-NEXT: retq ; ; CHECK-AVX2-LABEL: shl_to_ror_eq_16xi16_s8_fail_preserve_i16: ; CHECK-AVX2: # %bb.0: ; CHECK-AVX2-NEXT: vpsllw $8, %ymm0, %ymm1 ; CHECK-AVX2-NEXT: vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0 ; CHECK-AVX2-NEXT: vpcmpeqw %ymm0, %ymm1, %ymm0 ; CHECK-AVX2-NEXT: vpcmpeqd %ymm1, %ymm1, %ymm1 ; CHECK-AVX2-NEXT: vpxor %ymm1, %ymm0, %ymm0 ; CHECK-AVX2-NEXT: vextracti128 $1, %ymm0, %xmm1 ; CHECK-AVX2-NEXT: vpacksswb %xmm1, %xmm0, %xmm0 ; CHECK-AVX2-NEXT: vzeroupper ; CHECK-AVX2-NEXT: retq ; ; CHECK-AVX512-LABEL: shl_to_ror_eq_16xi16_s8_fail_preserve_i16: ; CHECK-AVX512: # %bb.0: ; CHECK-AVX512-NEXT: vpsllw $8, %ymm0, %ymm1 ; CHECK-AVX512-NEXT: vpandd {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %ymm0, %ymm0 ; CHECK-AVX512-NEXT: vpcmpeqw %ymm0, %ymm1, %ymm0 ; CHECK-AVX512-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero ; CHECK-AVX512-NEXT: vpmovdb %zmm0, %xmm0 ; CHECK-AVX512-NEXT: vpternlogq $15, %xmm0, %xmm0, %xmm0 ; CHECK-AVX512-NEXT: vzeroupper ; CHECK-AVX512-NEXT: retq %shr = shl <16 x i16> %x, %and = and <16 x i16> %x, %r = icmp ne <16 x i16> %shr, %and ret <16 x i1> %r } define i1 @shr_to_shl_eq_i32_s5_fail_doesnt_add_up(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i32_s5_fail_doesnt_add_up: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $7, %eax ; CHECK-NEXT: shrl $5, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 7 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_shl_eq_i8_s5_fail_doesnt_add_up2(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i8_s5_fail_doesnt_add_up2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $268435455, %eax # imm = 0xFFFFFFF ; CHECK-NEXT: shrl $5, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 268435455 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_shl_eq_i8_s5_fail_doesnt_add_up3(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i8_s5_fail_doesnt_add_up3: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $67108863, %eax # imm = 0x3FFFFFF ; CHECK-NEXT: shrl $5, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 67108863 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_shl_eq_i8_s5_fail_doesnt_not_mask(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i8_s5_fail_doesnt_not_mask: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $11, %eax ; CHECK-NEXT: shrl $5, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 11 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_wrong_mask(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_wrong_mask: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $511, %eax # imm = 0x1FF ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 511 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_shl_eq_i32_s5_fail_wrong_mask(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i32_s5_fail_wrong_mask: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $-32, %eax ; CHECK-NEXT: shrl $5, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -32 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_doesnt_add_up(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_doesnt_add_up: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $65024, %eax # imm = 0xFE00 ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 65024 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_doesnt_add_up2(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_doesnt_add_up2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $-1024, %eax # imm = 0xFC00 ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -1024 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_doesnt_add_up3(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_doesnt_add_up3: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $-256, %eax ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -256 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_not_mask(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_not_mask: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $-511, %eax # imm = 0xFE01 ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -511 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_not_mask2(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_not_mask2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $-255, %eax ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -255 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9_fail_wrong_mask2(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9_fail_wrong_mask2: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andl $8388607, %eax # imm = 0x7FFFFF ; CHECK-NEXT: shll $9, %edi ; CHECK-NEXT: cmpl %edi, %eax ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 8388607 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shl_to_shr_eq_i32_s9(i32 %x) { ; CHECK-LABEL: shl_to_shr_eq_i32_s9: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shrl $9, %eax ; CHECK-NEXT: andl $8388607, %edi # imm = 0x7FFFFF ; CHECK-NEXT: cmpl %eax, %edi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, -512 %sh = shl i32 %x, 9 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_shl_eq_i32_s5(i32 %x) { ; CHECK-LABEL: shr_to_shl_eq_i32_s5: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: shll $5, %eax ; CHECK-NEXT: andl $-32, %edi ; CHECK-NEXT: cmpl %eax, %edi ; CHECK-NEXT: sete %al ; CHECK-NEXT: retq %and = and i32 %x, 134217727 %sh = lshr i32 %x, 5 %r = icmp eq i32 %and, %sh ret i1 %r } define i1 @shr_to_rotate_eq_i32_s5(i32 %x) { ; CHECK-NOBMI-LABEL: shr_to_rotate_eq_i32_s5: ; CHECK-NOBMI: # %bb.0: ; CHECK-NOBMI-NEXT: movl %edi, %eax ; CHECK-NOBMI-NEXT: roll $4, %eax ; CHECK-NOBMI-NEXT: cmpl %eax, %edi ; CHECK-NOBMI-NEXT: sete %al ; CHECK-NOBMI-NEXT: retq ; ; CHECK-BMI2-LABEL: shr_to_rotate_eq_i32_s5: ; CHECK-BMI2: # %bb.0: ; CHECK-BMI2-NEXT: rorxl $28, %edi, %eax ; CHECK-BMI2-NEXT: cmpl %eax, %edi ; CHECK-BMI2-NEXT: sete %al ; CHECK-BMI2-NEXT: retq %and = and i32 %x, 268435455 %sh = lshr i32 %x, 4 %r = icmp eq i32 %and, %sh ret i1 %r } ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line: ; CHECK-AVX: {{.*}} ; CHECK-NOBMI-SSE2: {{.*}}