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clang-p2996/llvm/test/Transforms/SLPVectorizer/X86/cmp_commute.ll
Philip Reames e6ad9ef4e7 [instcombine] Canonicalize constant index type to i64 for extractelement/insertelement 
The basic idea to this is that a) having a single canonical type makes CSE easier, and b) many of our transforms are inconsistent about which types we end up with based on visit order.

I'm restricting this to constants as for non-constants, we'd have to decide whether the simplicity was worth extra instructions. For constants, there are no extra instructions.

We chose the canonical type as i64 arbitrarily.  We might consider changing this to something else in the future if we have cause.

Differential Revision: https://reviews.llvm.org/D115387
2021-12-13 16:56:22 -08:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -slp-vectorizer -instcombine -S -mtriple=x86_64--- -mattr=+sse2 | FileCheck %s --check-prefixes=CHECK,SSE
; RUN: opt < %s -slp-vectorizer -instcombine -S -mtriple=x86_64--- -mattr=+avx | FileCheck %s --check-prefixes=CHECK,AVX
;
; Check that we can commute operands based on the predicate.
;
define <4 x i32> @icmp_eq_v4i32(<4 x i32> %a, i32* %b) {
; CHECK-LABEL: @icmp_eq_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <4 x i32> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x i32> %a, i32 0
%a1 = extractelement <4 x i32> %a, i32 1
%a2 = extractelement <4 x i32> %a, i32 2
%a3 = extractelement <4 x i32> %a, i32 3
%p0 = getelementptr inbounds i32, i32* %b, i32 0
%p1 = getelementptr inbounds i32, i32* %b, i32 1
%p2 = getelementptr inbounds i32, i32* %b, i32 2
%p3 = getelementptr inbounds i32, i32* %b, i32 3
%b0 = load i32, i32* %p0, align 4
%b1 = load i32, i32* %p1, align 4
%b2 = load i32, i32* %p2, align 4
%b3 = load i32, i32* %p3, align 4
%c0 = icmp eq i32 %a0, %b0
%c1 = icmp eq i32 %b1, %a1
%c2 = icmp eq i32 %b2, %a2
%c3 = icmp eq i32 %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @icmp_ne_v4i32(<4 x i32> %a, i32* %b) {
; CHECK-LABEL: @icmp_ne_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = icmp ne <4 x i32> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x i32> %a, i32 0
%a1 = extractelement <4 x i32> %a, i32 1
%a2 = extractelement <4 x i32> %a, i32 2
%a3 = extractelement <4 x i32> %a, i32 3
%p0 = getelementptr inbounds i32, i32* %b, i32 0
%p1 = getelementptr inbounds i32, i32* %b, i32 1
%p2 = getelementptr inbounds i32, i32* %b, i32 2
%p3 = getelementptr inbounds i32, i32* %b, i32 3
%b0 = load i32, i32* %p0, align 4
%b1 = load i32, i32* %p1, align 4
%b2 = load i32, i32* %p2, align 4
%b3 = load i32, i32* %p3, align 4
%c0 = icmp ne i32 %a0, %b0
%c1 = icmp ne i32 %b1, %a1
%c2 = icmp ne i32 %b2, %a2
%c3 = icmp ne i32 %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @fcmp_oeq_v4i32(<4 x float> %a, float* %b) {
; CHECK-LABEL: @fcmp_oeq_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[B:%.*]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fcmp oeq <4 x float> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x float> %a, i32 0
%a1 = extractelement <4 x float> %a, i32 1
%a2 = extractelement <4 x float> %a, i32 2
%a3 = extractelement <4 x float> %a, i32 3
%p0 = getelementptr inbounds float, float* %b, i32 0
%p1 = getelementptr inbounds float, float* %b, i32 1
%p2 = getelementptr inbounds float, float* %b, i32 2
%p3 = getelementptr inbounds float, float* %b, i32 3
%b0 = load float, float* %p0, align 4
%b1 = load float, float* %p1, align 4
%b2 = load float, float* %p2, align 4
%b3 = load float, float* %p3, align 4
%c0 = fcmp oeq float %a0, %b0
%c1 = fcmp oeq float %b1, %a1
%c2 = fcmp oeq float %b2, %a2
%c3 = fcmp oeq float %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @fcmp_uno_v4i32(<4 x float> %a, float* %b) {
; CHECK-LABEL: @fcmp_uno_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[B:%.*]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fcmp uno <4 x float> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x float> %a, i32 0
%a1 = extractelement <4 x float> %a, i32 1
%a2 = extractelement <4 x float> %a, i32 2
%a3 = extractelement <4 x float> %a, i32 3
%p0 = getelementptr inbounds float, float* %b, i32 0
%p1 = getelementptr inbounds float, float* %b, i32 1
%p2 = getelementptr inbounds float, float* %b, i32 2
%p3 = getelementptr inbounds float, float* %b, i32 3
%b0 = load float, float* %p0, align 4
%b1 = load float, float* %p1, align 4
%b2 = load float, float* %p2, align 4
%b3 = load float, float* %p3, align 4
%c0 = fcmp uno float %a0, %b0
%c1 = fcmp uno float %b1, %a1
%c2 = fcmp uno float %b2, %a2
%c3 = fcmp uno float %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
;
; Check that we can commute operands by swapping the predicate.
;
define <4 x i32> @icmp_sgt_slt_v4i32(<4 x i32> %a, i32* %b) {
; CHECK-LABEL: @icmp_sgt_slt_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = icmp slt <4 x i32> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x i32> %a, i32 0
%a1 = extractelement <4 x i32> %a, i32 1
%a2 = extractelement <4 x i32> %a, i32 2
%a3 = extractelement <4 x i32> %a, i32 3
%p0 = getelementptr inbounds i32, i32* %b, i32 0
%p1 = getelementptr inbounds i32, i32* %b, i32 1
%p2 = getelementptr inbounds i32, i32* %b, i32 2
%p3 = getelementptr inbounds i32, i32* %b, i32 3
%b0 = load i32, i32* %p0, align 4
%b1 = load i32, i32* %p1, align 4
%b2 = load i32, i32* %p2, align 4
%b3 = load i32, i32* %p3, align 4
%c0 = icmp sgt i32 %a0, %b0
%c1 = icmp slt i32 %b1, %a1
%c2 = icmp slt i32 %b2, %a2
%c3 = icmp sgt i32 %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @icmp_uge_ule_v4i32(<4 x i32> %a, i32* %b) {
; CHECK-LABEL: @icmp_uge_ule_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[B:%.*]] to <4 x i32>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = icmp ule <4 x i32> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x i32> %a, i32 0
%a1 = extractelement <4 x i32> %a, i32 1
%a2 = extractelement <4 x i32> %a, i32 2
%a3 = extractelement <4 x i32> %a, i32 3
%p0 = getelementptr inbounds i32, i32* %b, i32 0
%p1 = getelementptr inbounds i32, i32* %b, i32 1
%p2 = getelementptr inbounds i32, i32* %b, i32 2
%p3 = getelementptr inbounds i32, i32* %b, i32 3
%b0 = load i32, i32* %p0, align 4
%b1 = load i32, i32* %p1, align 4
%b2 = load i32, i32* %p2, align 4
%b3 = load i32, i32* %p3, align 4
%c0 = icmp uge i32 %a0, %b0
%c1 = icmp ule i32 %b1, %a1
%c2 = icmp ule i32 %b2, %a2
%c3 = icmp uge i32 %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @fcmp_ogt_olt_v4i32(<4 x float> %a, float* %b) {
; CHECK-LABEL: @fcmp_ogt_olt_v4i32(
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[B:%.*]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = fcmp olt <4 x float> [[TMP2]], [[A:%.*]]
; CHECK-NEXT: [[R:%.*]] = sext <4 x i1> [[TMP3]] to <4 x i32>
; CHECK-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x float> %a, i32 0
%a1 = extractelement <4 x float> %a, i32 1
%a2 = extractelement <4 x float> %a, i32 2
%a3 = extractelement <4 x float> %a, i32 3
%p0 = getelementptr inbounds float, float* %b, i32 0
%p1 = getelementptr inbounds float, float* %b, i32 1
%p2 = getelementptr inbounds float, float* %b, i32 2
%p3 = getelementptr inbounds float, float* %b, i32 3
%b0 = load float, float* %p0, align 4
%b1 = load float, float* %p1, align 4
%b2 = load float, float* %p2, align 4
%b3 = load float, float* %p3, align 4
%c0 = fcmp ogt float %a0, %b0
%c1 = fcmp olt float %b1, %a1
%c2 = fcmp olt float %b2, %a2
%c3 = fcmp ogt float %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
define <4 x i32> @fcmp_ord_uno_v4i32(<4 x float> %a, float* %b) {
; SSE-LABEL: @fcmp_ord_uno_v4i32(
; SSE-NEXT: [[P1:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 1
; SSE-NEXT: [[P3:%.*]] = getelementptr inbounds float, float* [[B]], i64 3
; SSE-NEXT: [[B0:%.*]] = load float, float* [[B]], align 4
; SSE-NEXT: [[TMP1:%.*]] = bitcast float* [[P1]] to <2 x float>*
; SSE-NEXT: [[TMP2:%.*]] = load <2 x float>, <2 x float>* [[TMP1]], align 4
; SSE-NEXT: [[B3:%.*]] = load float, float* [[P3]], align 4
; SSE-NEXT: [[TMP3:%.*]] = shufflevector <4 x float> [[A:%.*]], <4 x float> undef, <2 x i32> <i32 1, i32 2>
; SSE-NEXT: [[TMP4:%.*]] = fcmp uno <2 x float> [[TMP2]], [[TMP3]]
; SSE-NEXT: [[TMP5:%.*]] = shufflevector <4 x float> [[A]], <4 x float> undef, <2 x i32> <i32 3, i32 0>
; SSE-NEXT: [[TMP6:%.*]] = insertelement <2 x float> poison, float [[B3]], i64 0
; SSE-NEXT: [[TMP7:%.*]] = insertelement <2 x float> [[TMP6]], float [[B0]], i64 1
; SSE-NEXT: [[TMP8:%.*]] = fcmp ord <2 x float> [[TMP5]], [[TMP7]]
; SSE-NEXT: [[TMP9:%.*]] = shufflevector <2 x i1> [[TMP8]], <2 x i1> poison, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef>
; SSE-NEXT: [[D0:%.*]] = shufflevector <2 x i1> [[TMP8]], <2 x i1> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
; SSE-NEXT: [[TMP10:%.*]] = shufflevector <2 x i1> [[TMP4]], <2 x i1> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; SSE-NEXT: [[D21:%.*]] = shufflevector <4 x i1> [[D0]], <4 x i1> [[TMP10]], <4 x i32> <i32 0, i32 4, i32 5, i32 undef>
; SSE-NEXT: [[D3:%.*]] = shufflevector <4 x i1> [[D21]], <4 x i1> [[TMP9]], <4 x i32> <i32 0, i32 1, i32 2, i32 4>
; SSE-NEXT: [[R:%.*]] = sext <4 x i1> [[D3]] to <4 x i32>
; SSE-NEXT: ret <4 x i32> [[R]]
;
; AVX-LABEL: @fcmp_ord_uno_v4i32(
; AVX-NEXT: [[A0:%.*]] = extractelement <4 x float> [[A:%.*]], i64 0
; AVX-NEXT: [[A3:%.*]] = extractelement <4 x float> [[A]], i64 3
; AVX-NEXT: [[P1:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 1
; AVX-NEXT: [[P3:%.*]] = getelementptr inbounds float, float* [[B]], i64 3
; AVX-NEXT: [[B0:%.*]] = load float, float* [[B]], align 4
; AVX-NEXT: [[TMP1:%.*]] = bitcast float* [[P1]] to <2 x float>*
; AVX-NEXT: [[TMP2:%.*]] = load <2 x float>, <2 x float>* [[TMP1]], align 4
; AVX-NEXT: [[B3:%.*]] = load float, float* [[P3]], align 4
; AVX-NEXT: [[C0:%.*]] = fcmp ord float [[A0]], [[B0]]
; AVX-NEXT: [[TMP3:%.*]] = shufflevector <4 x float> [[A]], <4 x float> undef, <2 x i32> <i32 1, i32 2>
; AVX-NEXT: [[TMP4:%.*]] = fcmp uno <2 x float> [[TMP2]], [[TMP3]]
; AVX-NEXT: [[C3:%.*]] = fcmp ord float [[A3]], [[B3]]
; AVX-NEXT: [[D0:%.*]] = insertelement <4 x i1> undef, i1 [[C0]], i64 0
; AVX-NEXT: [[TMP5:%.*]] = shufflevector <2 x i1> [[TMP4]], <2 x i1> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
; AVX-NEXT: [[D21:%.*]] = shufflevector <4 x i1> [[D0]], <4 x i1> [[TMP5]], <4 x i32> <i32 0, i32 4, i32 5, i32 undef>
; AVX-NEXT: [[D3:%.*]] = insertelement <4 x i1> [[D21]], i1 [[C3]], i64 3
; AVX-NEXT: [[R:%.*]] = sext <4 x i1> [[D3]] to <4 x i32>
; AVX-NEXT: ret <4 x i32> [[R]]
;
%a0 = extractelement <4 x float> %a, i32 0
%a1 = extractelement <4 x float> %a, i32 1
%a2 = extractelement <4 x float> %a, i32 2
%a3 = extractelement <4 x float> %a, i32 3
%p0 = getelementptr inbounds float, float* %b, i32 0
%p1 = getelementptr inbounds float, float* %b, i32 1
%p2 = getelementptr inbounds float, float* %b, i32 2
%p3 = getelementptr inbounds float, float* %b, i32 3
%b0 = load float, float* %p0, align 4
%b1 = load float, float* %p1, align 4
%b2 = load float, float* %p2, align 4
%b3 = load float, float* %p3, align 4
%c0 = fcmp ord float %a0, %b0
%c1 = fcmp uno float %b1, %a1
%c2 = fcmp uno float %b2, %a2
%c3 = fcmp ord float %a3, %b3
%d0 = insertelement <4 x i1> undef, i1 %c0, i32 0
%d1 = insertelement <4 x i1> %d0, i1 %c1, i32 1
%d2 = insertelement <4 x i1> %d1, i1 %c2, i32 2
%d3 = insertelement <4 x i1> %d2, i1 %c3, i32 3
%r = sext <4 x i1> %d3 to <4 x i32>
ret <4 x i32> %r
}
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