; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefixes=CHECK,SSE ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefixes=CHECK,AVX1 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX2 define i32 @shl48sar47(i64 %a) #0 { ; CHECK-LABEL: shl48sar47: ; CHECK: # %bb.0: ; CHECK-NEXT: movswq %di, %rax ; CHECK-NEXT: addl %eax, %eax ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: retq %1 = shl i64 %a, 48 %2 = ashr exact i64 %1, 47 %3 = trunc i64 %2 to i32 ret i32 %3 } define i32 @shl48sar49(i64 %a) #0 { ; CHECK-LABEL: shl48sar49: ; CHECK: # %bb.0: ; CHECK-NEXT: movswq %di, %rax ; CHECK-NEXT: shrq %rax ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: retq %1 = shl i64 %a, 48 %2 = ashr exact i64 %1, 49 %3 = trunc i64 %2 to i32 ret i32 %3 } define i32 @shl56sar55(i64 %a) #0 { ; CHECK-LABEL: shl56sar55: ; CHECK: # %bb.0: ; CHECK-NEXT: movsbq %dil, %rax ; CHECK-NEXT: addl %eax, %eax ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: retq %1 = shl i64 %a, 56 %2 = ashr exact i64 %1, 55 %3 = trunc i64 %2 to i32 ret i32 %3 } define i32 @shl56sar57(i64 %a) #0 { ; CHECK-LABEL: shl56sar57: ; CHECK: # %bb.0: ; CHECK-NEXT: movsbq %dil, %rax ; CHECK-NEXT: shrq %rax ; CHECK-NEXT: # kill: def $eax killed $eax killed $rax ; CHECK-NEXT: retq %1 = shl i64 %a, 56 %2 = ashr exact i64 %1, 57 %3 = trunc i64 %2 to i32 ret i32 %3 } define i8 @all_sign_bit_ashr(i8 %x) { ; CHECK-LABEL: all_sign_bit_ashr: ; CHECK: # %bb.0: ; CHECK-NEXT: movl %edi, %eax ; CHECK-NEXT: andb $1, %al ; CHECK-NEXT: negb %al ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq %and = and i8 %x, 1 %neg = sub i8 0, %and %sar = ashr i8 %neg, 6 ret i8 %sar } define <4 x i32> @all_sign_bit_ashr_vec0(<4 x i32> %x) { ; SSE-LABEL: all_sign_bit_ashr_vec0: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: pxor %xmm1, %xmm1 ; SSE-NEXT: psubd %xmm0, %xmm1 ; SSE-NEXT: movdqa %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX1-LABEL: all_sign_bit_ashr_vec0: ; AVX1: # %bb.0: ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; AVX1-NEXT: vpsubd %xmm0, %xmm1, %xmm0 ; AVX1-NEXT: retq ; ; AVX2-LABEL: all_sign_bit_ashr_vec0: ; AVX2: # %bb.0: ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm1 = [1,1,1,1] ; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; AVX2-NEXT: vpsubd %xmm0, %xmm1, %xmm0 ; AVX2-NEXT: retq %and = and <4 x i32> %x, %neg = sub <4 x i32> zeroinitializer, %and %sar = ashr <4 x i32> %neg, ret <4 x i32> %sar } define <4 x i32> @all_sign_bit_ashr_vec1(<4 x i32> %x) { ; SSE-LABEL: all_sign_bit_ashr_vec1: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: pxor %xmm1, %xmm1 ; SSE-NEXT: psubd %xmm0, %xmm1 ; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[0,0,0,0] ; SSE-NEXT: retq ; ; AVX1-LABEL: all_sign_bit_ashr_vec1: ; AVX1: # %bb.0: ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; AVX1-NEXT: vpsubd %xmm0, %xmm1, %xmm0 ; AVX1-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,0,0,0] ; AVX1-NEXT: retq ; ; AVX2-LABEL: all_sign_bit_ashr_vec1: ; AVX2: # %bb.0: ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm1 = [1,1,1,1] ; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: vpxor %xmm1, %xmm1, %xmm1 ; AVX2-NEXT: vpsubd %xmm0, %xmm1, %xmm0 ; AVX2-NEXT: vpbroadcastd %xmm0, %xmm0 ; AVX2-NEXT: retq %and = and <4 x i32> %x, %sub = sub <4 x i32> , %and %shf = shufflevector <4 x i32> %sub, <4 x i32> undef, <4 x i32> zeroinitializer %sar = ashr <4 x i32> %shf, ret <4 x i32> %sar } define <4 x i32> @all_sign_bit_ashr_vec2(<4 x i32> %x) { ; SSE-LABEL: all_sign_bit_ashr_vec2: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: pcmpeqd %xmm1, %xmm1 ; SSE-NEXT: paddd %xmm1, %xmm0 ; SSE-NEXT: retq ; ; AVX1-LABEL: all_sign_bit_ashr_vec2: ; AVX1: # %bb.0: ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX1-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm0 ; AVX1-NEXT: retq ; ; AVX2-LABEL: all_sign_bit_ashr_vec2: ; AVX2: # %bb.0: ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm1 = [1,1,1,1] ; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: retq %and = and <4 x i32> %x, %add = add <4 x i32> %and, %sar = ashr <4 x i32> %add, ret <4 x i32> %sar } define <4 x i32> @all_sign_bit_ashr_vec3(<4 x i32> %x) { ; SSE-LABEL: all_sign_bit_ashr_vec3: ; SSE: # %bb.0: ; SSE-NEXT: pand {{.*}}(%rip), %xmm0 ; SSE-NEXT: pcmpeqd %xmm1, %xmm1 ; SSE-NEXT: paddd %xmm0, %xmm1 ; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[0,0,0,0] ; SSE-NEXT: retq ; ; AVX1-LABEL: all_sign_bit_ashr_vec3: ; AVX1: # %bb.0: ; AVX1-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0 ; AVX1-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX1-NEXT: vpaddd %xmm1, %xmm0, %xmm0 ; AVX1-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,0,0,0] ; AVX1-NEXT: retq ; ; AVX2-LABEL: all_sign_bit_ashr_vec3: ; AVX2: # %bb.0: ; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm1 = [1,1,1,1] ; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1 ; AVX2-NEXT: vpaddd %xmm1, %xmm0, %xmm0 ; AVX2-NEXT: vpbroadcastd %xmm0, %xmm0 ; AVX2-NEXT: retq %and = and <4 x i32> %x, %add = add <4 x i32> %and, %shf = shufflevector <4 x i32> %add, <4 x i32> undef, <4 x i32> zeroinitializer %sar = ashr <4 x i32> %shf, ret <4 x i32> %sar } attributes #0 = { nounwind }