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llvm-for-llvmta/test/CodeGen/X86/combine-rotates.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=CHECK,SSE2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+xop | FileCheck %s --check-prefixes=CHECK,XOP
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512vl | FileCheck %s --check-prefixes=CHECK,AVX512
; fold (rot (rot x, c1), c2) -> rot x, c1+c2
define <4 x i32> @combine_vec_rot_rot(<4 x i32> %x) {
; SSE2-LABEL: combine_vec_rot_rot:
; SSE2: # %bb.0:
; SSE2-NEXT: movdqa {{.*#+}} xmm1 = [524288,131072,32768,8192]
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm0[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm0[1,3,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,3,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
; SSE2-NEXT: por %xmm3, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: combine_vec_rot_rot:
; XOP: # %bb.0:
; XOP-NEXT: vprotd {{.*}}(%rip), %xmm0, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: combine_vec_rot_rot:
; AVX2: # %bb.0:
; AVX2-NEXT: vpsrlvd {{.*}}(%rip), %xmm0, %xmm1
; AVX2-NEXT: vpsllvd {{.*}}(%rip), %xmm0, %xmm0
; AVX2-NEXT: vpor %xmm1, %xmm0, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: combine_vec_rot_rot:
; AVX512: # %bb.0:
; AVX512-NEXT: vprolvd {{.*}}(%rip), %xmm0, %xmm0
; AVX512-NEXT: retq
%1 = lshr <4 x i32> %x, <i32 1, i32 2, i32 3, i32 4>
%2 = shl <4 x i32> %x, <i32 31, i32 30, i32 29, i32 28>
%3 = or <4 x i32> %1, %2
%4 = lshr <4 x i32> %3, <i32 12, i32 13, i32 14, i32 15>
%5 = shl <4 x i32> %3, <i32 20, i32 19, i32 18, i32 17>
%6 = or <4 x i32> %4, %5
ret <4 x i32> %6
}
define <4 x i32> @combine_vec_rot_rot_splat(<4 x i32> %x) {
; SSE2-LABEL: combine_vec_rot_rot_splat:
; SSE2: # %bb.0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrld $25, %xmm1
; SSE2-NEXT: pslld $7, %xmm0
; SSE2-NEXT: por %xmm1, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: combine_vec_rot_rot_splat:
; XOP: # %bb.0:
; XOP-NEXT: vprotd $7, %xmm0, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: combine_vec_rot_rot_splat:
; AVX2: # %bb.0:
; AVX2-NEXT: vpsrld $25, %xmm0, %xmm1
; AVX2-NEXT: vpslld $7, %xmm0, %xmm0
; AVX2-NEXT: vpor %xmm1, %xmm0, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: combine_vec_rot_rot_splat:
; AVX512: # %bb.0:
; AVX512-NEXT: vprold $7, %xmm0, %xmm0
; AVX512-NEXT: retq
%1 = lshr <4 x i32> %x, <i32 3, i32 3, i32 3, i32 3>
%2 = shl <4 x i32> %x, <i32 29, i32 29, i32 29, i32 29>
%3 = or <4 x i32> %1, %2
%4 = lshr <4 x i32> %3, <i32 22, i32 22, i32 22, i32 22>
%5 = shl <4 x i32> %3, <i32 10, i32 10, i32 10, i32 10>
%6 = or <4 x i32> %4, %5
ret <4 x i32> %6
}
define <4 x i32> @combine_vec_rot_rot_splat_zero(<4 x i32> %x) {
; CHECK-LABEL: combine_vec_rot_rot_splat_zero:
; CHECK: # %bb.0:
; CHECK-NEXT: retq
%1 = lshr <4 x i32> %x, <i32 1, i32 1, i32 1, i32 1>
%2 = shl <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%3 = or <4 x i32> %1, %2
%4 = lshr <4 x i32> %3, <i32 31, i32 31, i32 31, i32 31>
%5 = shl <4 x i32> %3, <i32 1, i32 1, i32 1, i32 1>
%6 = or <4 x i32> %4, %5
ret <4 x i32> %6
}
; TODO - fold (select (icmp eq c, 0), x, (rot x, c)) -> rot x, c
define i32 @combine_rot_select_zero(i32, i32) {
; CHECK-LABEL: combine_rot_select_zero:
; CHECK: # %bb.0:
; CHECK-NEXT: movl %esi, %ecx
; CHECK-NEXT: movl %edi, %eax
; CHECK-NEXT: roll %cl, %eax
; CHECK-NEXT: testl %esi, %esi
; CHECK-NEXT: cmovel %edi, %eax
; CHECK-NEXT: retq
%3 = and i32 %1, 31
%4 = shl i32 %0, %3
%5 = sub i32 0, %1
%6 = and i32 %5, 31
%7 = lshr i32 %0, %6
%8 = or i32 %4, %7
%9 = icmp eq i32 %1, 0
%10 = select i1 %9, i32 %0, i32 %8
ret i32 %10
}
define <4 x i32> @combine_vec_rot_select_zero(<4 x i32>, <4 x i32>) {
; SSE2-LABEL: combine_vec_rot_select_zero:
; SSE2: # %bb.0:
; SSE2-NEXT: pxor %xmm2, %xmm2
; SSE2-NEXT: movdqa {{.*#+}} xmm3 = [31,31,31,31]
; SSE2-NEXT: pand %xmm1, %xmm3
; SSE2-NEXT: pslld $23, %xmm3
; SSE2-NEXT: paddd {{.*}}(%rip), %xmm3
; SSE2-NEXT: cvttps2dq %xmm3, %xmm3
; SSE2-NEXT: movdqa %xmm0, %xmm4
; SSE2-NEXT: pmuludq %xmm3, %xmm4
; SSE2-NEXT: pshufd {{.*#+}} xmm5 = xmm4[1,3,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm6 = xmm0[1,1,3,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm3[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm6, %xmm3
; SSE2-NEXT: pshufd {{.*#+}} xmm6 = xmm3[1,3,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm5 = xmm5[0],xmm6[0],xmm5[1],xmm6[1]
; SSE2-NEXT: pshufd {{.*#+}} xmm4 = xmm4[0,2,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm3[0,2,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm4 = xmm4[0],xmm3[0],xmm4[1],xmm3[1]
; SSE2-NEXT: por %xmm5, %xmm4
; SSE2-NEXT: pcmpeqd %xmm1, %xmm2
; SSE2-NEXT: pand %xmm2, %xmm0
; SSE2-NEXT: pandn %xmm4, %xmm2
; SSE2-NEXT: por %xmm2, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: combine_vec_rot_select_zero:
; XOP: # %bb.0:
; XOP-NEXT: vpxor %xmm2, %xmm2, %xmm2
; XOP-NEXT: vprotd %xmm1, %xmm0, %xmm3
; XOP-NEXT: vpcomeqd %xmm2, %xmm1, %xmm1
; XOP-NEXT: vblendvps %xmm1, %xmm0, %xmm3, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: combine_vec_rot_select_zero:
; AVX2: # %bb.0:
; AVX2-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm3 = [31,31,31,31]
; AVX2-NEXT: vpand %xmm3, %xmm1, %xmm3
; AVX2-NEXT: vpsllvd %xmm3, %xmm0, %xmm4
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm5 = [32,32,32,32]
; AVX2-NEXT: vpsubd %xmm3, %xmm5, %xmm3
; AVX2-NEXT: vpsrlvd %xmm3, %xmm0, %xmm3
; AVX2-NEXT: vpor %xmm3, %xmm4, %xmm3
; AVX2-NEXT: vpcmpeqd %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vblendvps %xmm1, %xmm0, %xmm3, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: combine_vec_rot_select_zero:
; AVX512: # %bb.0:
; AVX512-NEXT: vprolvd %xmm1, %xmm0, %xmm2
; AVX512-NEXT: vptestnmd %xmm1, %xmm1, %k1
; AVX512-NEXT: vmovdqa32 %xmm0, %xmm2 {%k1}
; AVX512-NEXT: vmovdqa %xmm2, %xmm0
; AVX512-NEXT: retq
%3 = and <4 x i32> %1, <i32 31, i32 31, i32 31, i32 31>
%4 = shl <4 x i32> %0, %3
%5 = sub <4 x i32> zeroinitializer, %1
%6 = and <4 x i32> %5, <i32 31, i32 31, i32 31, i32 31>
%7 = lshr <4 x i32> %0, %6
%8 = or <4 x i32> %4, %7
%9 = icmp eq <4 x i32> %1, zeroinitializer
%10 = select <4 x i1> %9, <4 x i32> %0, <4 x i32> %8
ret <4 x i32> %10
}
define <4 x i32> @rotate_demanded_bits(<4 x i32>, <4 x i32>) {
; SSE2-LABEL: rotate_demanded_bits:
; SSE2: # %bb.0:
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: pslld $23, %xmm1
; SSE2-NEXT: paddd {{.*}}(%rip), %xmm1
; SSE2-NEXT: cvttps2dq %xmm1, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm0[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm0[1,3,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,3,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
; SSE2-NEXT: por %xmm3, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: rotate_demanded_bits:
; XOP: # %bb.0:
; XOP-NEXT: vpand {{.*}}(%rip), %xmm1, %xmm1
; XOP-NEXT: vprotd %xmm1, %xmm0, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: rotate_demanded_bits:
; AVX2: # %bb.0:
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [30,30,30,30]
; AVX2-NEXT: vpand %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vpsllvd %xmm1, %xmm0, %xmm2
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm3 = [32,32,32,32]
; AVX2-NEXT: vpsubd %xmm1, %xmm3, %xmm1
; AVX2-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
; AVX2-NEXT: vpor %xmm0, %xmm2, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: rotate_demanded_bits:
; AVX512: # %bb.0:
; AVX512-NEXT: vpandd {{.*}}(%rip){1to4}, %xmm1, %xmm1
; AVX512-NEXT: vprolvd %xmm1, %xmm0, %xmm0
; AVX512-NEXT: retq
%3 = and <4 x i32> %1, <i32 30, i32 30, i32 30, i32 30>
%4 = shl <4 x i32> %0, %3
%5 = sub nsw <4 x i32> zeroinitializer, %3
%6 = and <4 x i32> %5, <i32 30, i32 30, i32 30, i32 30>
%7 = lshr <4 x i32> %0, %6
%8 = or <4 x i32> %7, %4
ret <4 x i32> %8
}
define <4 x i32> @rotate_demanded_bits_2(<4 x i32>, <4 x i32>) {
; SSE2-LABEL: rotate_demanded_bits_2:
; SSE2: # %bb.0:
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: pslld $23, %xmm1
; SSE2-NEXT: paddd {{.*}}(%rip), %xmm1
; SSE2-NEXT: cvttps2dq %xmm1, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm0[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm0[1,3,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,3,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
; SSE2-NEXT: por %xmm3, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: rotate_demanded_bits_2:
; XOP: # %bb.0:
; XOP-NEXT: vpand {{.*}}(%rip), %xmm1, %xmm1
; XOP-NEXT: vprotd %xmm1, %xmm0, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: rotate_demanded_bits_2:
; AVX2: # %bb.0:
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [23,23,23,23]
; AVX2-NEXT: vpand %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vpsllvd %xmm1, %xmm0, %xmm2
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm3 = [32,32,32,32]
; AVX2-NEXT: vpsubd %xmm1, %xmm3, %xmm1
; AVX2-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
; AVX2-NEXT: vpor %xmm0, %xmm2, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: rotate_demanded_bits_2:
; AVX512: # %bb.0:
; AVX512-NEXT: vpandd {{.*}}(%rip){1to4}, %xmm1, %xmm1
; AVX512-NEXT: vprolvd %xmm1, %xmm0, %xmm0
; AVX512-NEXT: retq
%3 = and <4 x i32> %1, <i32 23, i32 23, i32 23, i32 23>
%4 = shl <4 x i32> %0, %3
%5 = sub nsw <4 x i32> zeroinitializer, %3
%6 = and <4 x i32> %5, <i32 31, i32 31, i32 31, i32 31>
%7 = lshr <4 x i32> %0, %6
%8 = or <4 x i32> %7, %4
ret <4 x i32> %8
}
define <4 x i32> @rotate_demanded_bits_3(<4 x i32>, <4 x i32>) {
; SSE2-LABEL: rotate_demanded_bits_3:
; SSE2: # %bb.0:
; SSE2-NEXT: paddd %xmm1, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: pslld $23, %xmm1
; SSE2-NEXT: paddd {{.*}}(%rip), %xmm1
; SSE2-NEXT: cvttps2dq %xmm1, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm0[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm3 = xmm0[1,3,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3]
; SSE2-NEXT: pmuludq %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,3,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm3 = xmm3[0],xmm2[0],xmm3[1],xmm2[1]
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,2,2,3]
; SSE2-NEXT: punpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
; SSE2-NEXT: por %xmm3, %xmm0
; SSE2-NEXT: retq
;
; XOP-LABEL: rotate_demanded_bits_3:
; XOP: # %bb.0:
; XOP-NEXT: vpaddd %xmm1, %xmm1, %xmm1
; XOP-NEXT: vprotd %xmm1, %xmm0, %xmm0
; XOP-NEXT: retq
;
; AVX2-LABEL: rotate_demanded_bits_3:
; AVX2: # %bb.0:
; AVX2-NEXT: vpaddd %xmm1, %xmm1, %xmm1
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [31,31,31,31]
; AVX2-NEXT: vpand %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vpsllvd %xmm1, %xmm0, %xmm2
; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm3 = [32,32,32,32]
; AVX2-NEXT: vpsubd %xmm1, %xmm3, %xmm1
; AVX2-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
; AVX2-NEXT: vpor %xmm0, %xmm2, %xmm0
; AVX2-NEXT: retq
;
; AVX512-LABEL: rotate_demanded_bits_3:
; AVX512: # %bb.0:
; AVX512-NEXT: vpaddd %xmm1, %xmm1, %xmm1
; AVX512-NEXT: vprolvd %xmm1, %xmm0, %xmm0
; AVX512-NEXT: retq
%3 = shl <4 x i32> %1, <i32 1, i32 1, i32 1, i32 1>
%4 = and <4 x i32> %3, <i32 30, i32 30, i32 30, i32 30>
%5 = shl <4 x i32> %0, %4
%6 = sub <4 x i32> zeroinitializer, %3
%7 = and <4 x i32> %6, <i32 30, i32 30, i32 30, i32 30>
%8 = lshr <4 x i32> %0, %7
%9 = or <4 x i32> %5, %8
ret <4 x i32> %9
}
; OSS Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9935
define i32 @fuzz9935() {
; CHECK-LABEL: fuzz9935:
; CHECK: # %bb.0:
; CHECK-NEXT: movl $-1, %eax
; CHECK-NEXT: retq
%1 = trunc i40 549755813887 to i32
%2 = mul i32 %1, %1
%3 = lshr i32 %2, %1
%4 = or i32 %3, %2
ret i32 %4
}
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