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https://github.com/RPCS3/llvm-mirror.git
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1d52f2e8fe
If we lower a v2i64 shuffle to PSHUFD, we currently clamp undef elements to 0, (elements 0,1 of the v4i32) which can result in the shuffle referencing more elements of the source vector than expected, affecting later shuffle combines and KnownBits/SimplifyDemanded calls. By ensuring we widen the undef mask element we allow getV4X86ShuffleImm8 to use inline elements as the default, which are more likely to fold.
361 lines
12 KiB
LLVM
361 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX1
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX2
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; fold (urem x, 1) -> 0
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define i32 @combine_urem_by_one(i32 %x) {
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; CHECK-LABEL: combine_urem_by_one:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%1 = urem i32 %x, 1
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ret i32 %1
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}
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define <4 x i32> @combine_vec_urem_by_one(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_by_one:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_urem_by_one:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = urem <4 x i32> %x, <i32 1, i32 1, i32 1, i32 1>
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ret <4 x i32> %1
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}
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; fold (urem x, -1) -> select((icmp eq x, -1), 0, x)
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define i32 @combine_urem_by_negone(i32 %x) {
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; CHECK-LABEL: combine_urem_by_negone:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: cmpl $-1, %edi
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; CHECK-NEXT: cmovnel %edi, %eax
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; CHECK-NEXT: retq
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%1 = urem i32 %x, -1
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ret i32 %1
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}
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define <4 x i32> @combine_vec_urem_by_negone(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_by_negone:
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; SSE: # %bb.0:
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; SSE-NEXT: pcmpeqd %xmm1, %xmm1
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; SSE-NEXT: pcmpeqd %xmm0, %xmm1
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; SSE-NEXT: pandn %xmm0, %xmm1
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; SSE-NEXT: movdqa %xmm1, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_urem_by_negone:
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; AVX: # %bb.0:
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; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
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; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm1
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; AVX-NEXT: vpandn %xmm0, %xmm1, %xmm0
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; AVX-NEXT: retq
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%1 = urem <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
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ret <4 x i32> %1
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}
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; fold (urem x, INT_MIN) -> (and x, ~INT_MIN)
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define i32 @combine_urem_by_minsigned(i32 %x) {
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; CHECK-LABEL: combine_urem_by_minsigned:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl %edi, %eax
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; CHECK-NEXT: andl $2147483647, %eax # imm = 0x7FFFFFFF
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; CHECK-NEXT: retq
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%1 = urem i32 %x, -2147483648
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ret i32 %1
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}
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define <4 x i32> @combine_vec_urem_by_minsigned(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_by_minsigned:
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; SSE: # %bb.0:
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; SSE-NEXT: andps {{.*}}(%rip), %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_minsigned:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_minsigned:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vbroadcastss {{.*#+}} xmm1 = [2147483647,2147483647,2147483647,2147483647]
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; AVX2-NEXT: vandps %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: retq
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%1 = urem <4 x i32> %x, <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648>
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ret <4 x i32> %1
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}
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; fold (urem 0, x) -> 0
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define i32 @combine_urem_zero(i32 %x) {
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; CHECK-LABEL: combine_urem_zero:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%1 = urem i32 0, %x
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ret i32 %1
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}
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define <4 x i32> @combine_vec_urem_zero(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_zero:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_urem_zero:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = urem <4 x i32> zeroinitializer, %x
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ret <4 x i32> %1
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}
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; fold (urem x, x) -> 0
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define i32 @combine_urem_dupe(i32 %x) {
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; CHECK-LABEL: combine_urem_dupe:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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%1 = urem i32 %x, %x
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ret i32 %1
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}
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define <4 x i32> @combine_vec_urem_dupe(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_dupe:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_urem_dupe:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = urem <4 x i32> %x, %x
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ret <4 x i32> %1
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}
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; fold (urem x, pow2) -> (and x, (pow2-1))
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define <4 x i32> @combine_vec_urem_by_pow2a(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_by_pow2a:
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; SSE: # %bb.0:
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; SSE-NEXT: andps {{.*}}(%rip), %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_pow2a:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_pow2a:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vbroadcastss {{.*#+}} xmm1 = [3,3,3,3]
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; AVX2-NEXT: vandps %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: retq
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%1 = urem <4 x i32> %x, <i32 4, i32 4, i32 4, i32 4>
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ret <4 x i32> %1
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}
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define <4 x i32> @combine_vec_urem_by_pow2b(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_urem_by_pow2b:
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; SSE: # %bb.0:
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; SSE-NEXT: andps {{.*}}(%rip), %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_urem_by_pow2b:
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; AVX: # %bb.0:
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; AVX-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = urem <4 x i32> %x, <i32 1, i32 4, i32 8, i32 16>
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ret <4 x i32> %1
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}
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define <4 x i32> @combine_vec_urem_by_pow2c(<4 x i32> %x, <4 x i32> %y) {
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; SSE-LABEL: combine_vec_urem_by_pow2c:
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; SSE: # %bb.0:
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; SSE-NEXT: pslld $23, %xmm1
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; SSE-NEXT: paddd {{.*}}(%rip), %xmm1
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; SSE-NEXT: cvttps2dq %xmm1, %xmm1
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; SSE-NEXT: pcmpeqd %xmm2, %xmm2
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; SSE-NEXT: paddd %xmm1, %xmm2
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; SSE-NEXT: pand %xmm2, %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_pow2c:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vpslld $23, %xmm1, %xmm1
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; AVX1-NEXT: vpaddd {{.*}}(%rip), %xmm1, %xmm1
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; AVX1-NEXT: vcvttps2dq %xmm1, %xmm1
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; AVX1-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX1-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_pow2c:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [1,1,1,1]
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; AVX2-NEXT: vpsllvd %xmm1, %xmm2, %xmm1
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; AVX2-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX2-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: retq
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%1 = shl <4 x i32> <i32 1, i32 1, i32 1, i32 1>, %y
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%2 = urem <4 x i32> %x, %1
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_urem_by_pow2d(<4 x i32> %x, <4 x i32> %y) {
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; SSE-LABEL: combine_vec_urem_by_pow2d:
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; SSE: # %bb.0:
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; SSE-NEXT: pshuflw {{.*#+}} xmm2 = xmm1[2,3,3,3,4,5,6,7]
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; SSE-NEXT: movdqa {{.*#+}} xmm3 = [2147483648,2147483648,2147483648,2147483648]
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; SSE-NEXT: movdqa %xmm3, %xmm4
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; SSE-NEXT: psrld %xmm2, %xmm4
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; SSE-NEXT: pshufd {{.*#+}} xmm2 = xmm1[2,3,2,3]
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; SSE-NEXT: pshuflw {{.*#+}} xmm5 = xmm2[2,3,3,3,4,5,6,7]
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; SSE-NEXT: movdqa %xmm3, %xmm6
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; SSE-NEXT: psrld %xmm5, %xmm6
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; SSE-NEXT: pblendw {{.*#+}} xmm6 = xmm4[0,1,2,3],xmm6[4,5,6,7]
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; SSE-NEXT: pshuflw {{.*#+}} xmm1 = xmm1[0,1,1,1,4,5,6,7]
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; SSE-NEXT: movdqa %xmm3, %xmm4
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; SSE-NEXT: psrld %xmm1, %xmm4
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; SSE-NEXT: pshuflw {{.*#+}} xmm1 = xmm2[0,1,1,1,4,5,6,7]
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; SSE-NEXT: psrld %xmm1, %xmm3
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; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm4[0,1,2,3],xmm3[4,5,6,7]
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; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm3[0,1],xmm6[2,3],xmm3[4,5],xmm6[6,7]
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; SSE-NEXT: pcmpeqd %xmm1, %xmm1
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; SSE-NEXT: paddd %xmm3, %xmm1
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; SSE-NEXT: pand %xmm1, %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_pow2d:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vpsrldq {{.*#+}} xmm2 = xmm1[12,13,14,15],zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero
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; AVX1-NEXT: vmovdqa {{.*#+}} xmm3 = [2147483648,2147483648,2147483648,2147483648]
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; AVX1-NEXT: vpsrld %xmm2, %xmm3, %xmm2
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; AVX1-NEXT: vpsrlq $32, %xmm1, %xmm4
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; AVX1-NEXT: vpsrld %xmm4, %xmm3, %xmm4
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; AVX1-NEXT: vpblendw {{.*#+}} xmm2 = xmm4[0,1,2,3],xmm2[4,5,6,7]
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; AVX1-NEXT: vpxor %xmm4, %xmm4, %xmm4
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; AVX1-NEXT: vpunpckhdq {{.*#+}} xmm4 = xmm1[2],xmm4[2],xmm1[3],xmm4[3]
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; AVX1-NEXT: vpsrld %xmm4, %xmm3, %xmm4
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; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm1 = xmm1[0],zero,xmm1[1],zero
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; AVX1-NEXT: vpsrld %xmm1, %xmm3, %xmm1
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; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm4[4,5,6,7]
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; AVX1-NEXT: vpblendw {{.*#+}} xmm1 = xmm1[0,1],xmm2[2,3],xmm1[4,5],xmm2[6,7]
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; AVX1-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX1-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_pow2d:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [2147483648,2147483648,2147483648,2147483648]
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; AVX2-NEXT: vpsrlvd %xmm1, %xmm2, %xmm1
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; AVX2-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX2-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: retq
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%1 = lshr <4 x i32> <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648>, %y
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%2 = urem <4 x i32> %x, %1
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ret <4 x i32> %2
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}
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; fold (urem x, (shl pow2, y)) -> (and x, (add (shl pow2, y), -1))
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define <4 x i32> @combine_vec_urem_by_shl_pow2a(<4 x i32> %x, <4 x i32> %y) {
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; SSE-LABEL: combine_vec_urem_by_shl_pow2a:
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; SSE: # %bb.0:
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; SSE-NEXT: pslld $23, %xmm1
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; SSE-NEXT: paddd {{.*}}(%rip), %xmm1
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; SSE-NEXT: cvttps2dq %xmm1, %xmm1
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; SSE-NEXT: pslld $2, %xmm1
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; SSE-NEXT: pcmpeqd %xmm2, %xmm2
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; SSE-NEXT: paddd %xmm1, %xmm2
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; SSE-NEXT: pand %xmm2, %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_shl_pow2a:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vpslld $23, %xmm1, %xmm1
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; AVX1-NEXT: vpaddd {{.*}}(%rip), %xmm1, %xmm1
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; AVX1-NEXT: vcvttps2dq %xmm1, %xmm1
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; AVX1-NEXT: vpslld $2, %xmm1, %xmm1
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; AVX1-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX1-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_shl_pow2a:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpbroadcastd {{.*#+}} xmm2 = [4,4,4,4]
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; AVX2-NEXT: vpsllvd %xmm1, %xmm2, %xmm1
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; AVX2-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX2-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: retq
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%1 = shl <4 x i32> <i32 4, i32 4, i32 4, i32 4>, %y
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%2 = urem <4 x i32> %x, %1
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_urem_by_shl_pow2b(<4 x i32> %x, <4 x i32> %y) {
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; SSE-LABEL: combine_vec_urem_by_shl_pow2b:
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; SSE: # %bb.0:
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; SSE-NEXT: pslld $23, %xmm1
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; SSE-NEXT: paddd {{.*}}(%rip), %xmm1
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; SSE-NEXT: cvttps2dq %xmm1, %xmm1
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; SSE-NEXT: pmulld {{.*}}(%rip), %xmm1
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; SSE-NEXT: pcmpeqd %xmm2, %xmm2
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; SSE-NEXT: paddd %xmm1, %xmm2
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; SSE-NEXT: pand %xmm2, %xmm0
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: combine_vec_urem_by_shl_pow2b:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vpslld $23, %xmm1, %xmm1
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; AVX1-NEXT: vpaddd {{.*}}(%rip), %xmm1, %xmm1
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; AVX1-NEXT: vcvttps2dq %xmm1, %xmm1
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; AVX1-NEXT: vpmulld {{.*}}(%rip), %xmm1, %xmm1
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; AVX1-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
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; AVX1-NEXT: vpaddd %xmm2, %xmm1, %xmm1
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: combine_vec_urem_by_shl_pow2b:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [1,4,8,16]
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; AVX2-NEXT: vpsllvd %xmm1, %xmm2, %xmm1
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; AVX2-NEXT: vpcmpeqd %xmm2, %xmm2, %xmm2
|
|
; AVX2-NEXT: vpaddd %xmm2, %xmm1, %xmm1
|
|
; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0
|
|
; AVX2-NEXT: retq
|
|
%1 = shl <4 x i32> <i32 1, i32 4, i32 8, i32 16>, %y
|
|
%2 = urem <4 x i32> %x, %1
|
|
ret <4 x i32> %2
|
|
}
|
|
|
|
define i1 @bool_urem(i1 %x, i1 %y) {
|
|
; CHECK-LABEL: bool_urem:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retq
|
|
%r = urem i1 %x, %y
|
|
ret i1 %r
|
|
}
|
|
|
|
define <4 x i1> @boolvec_urem(<4 x i1> %x, <4 x i1> %y) {
|
|
; SSE-LABEL: boolvec_urem:
|
|
; SSE: # %bb.0:
|
|
; SSE-NEXT: xorps %xmm0, %xmm0
|
|
; SSE-NEXT: retq
|
|
;
|
|
; AVX-LABEL: boolvec_urem:
|
|
; AVX: # %bb.0:
|
|
; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
|
|
; AVX-NEXT: retq
|
|
%r = urem <4 x i1> %x, %y
|
|
ret <4 x i1> %r
|
|
}
|