reduction_loads.ll
12.8 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.10.0 -mattr=+sse4.2 | FileCheck %s
; PR28474
;void foo();
;
;int test1(unsigned int *p) {
; int sum = 0;
; #pragma nounroll
; for (int y = 0; y < 2; y++) {
; // Inner loop gets unrolled
; for (int x = 0; x < 8; x++) {
; sum += p[x] * 42;
; }
; // Dummy call to keep outer loop alive
; foo();
; }
; return sum;
;}
define i32 @test(i32* nocapture readonly %p) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ARRAYIDX_1:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1
; CHECK-NEXT: [[ARRAYIDX_2:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 2
; CHECK-NEXT: [[ARRAYIDX_3:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 3
; CHECK-NEXT: [[ARRAYIDX_4:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 4
; CHECK-NEXT: [[ARRAYIDX_5:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 5
; CHECK-NEXT: [[ARRAYIDX_6:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 6
; CHECK-NEXT: [[ARRAYIDX_7:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 7
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[SUM:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_EXTRA:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[P]] to <8 x i32>*
; CHECK-NEXT: [[TMP1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP0]], align 4
; CHECK-NEXT: [[TMP2:%.*]] = mul <8 x i32> [[TMP1]], <i32 42, i32 42, i32 42, i32 42, i32 42, i32 42, i32 42, i32 42>
; CHECK-NEXT: [[TMP3:%.*]] = call i32 @llvm.experimental.vector.reduce.add.v8i32(<8 x i32> [[TMP2]])
; CHECK-NEXT: [[OP_EXTRA]] = add i32 [[TMP3]], [[SUM]]
; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret i32 [[OP_EXTRA]]
;
entry:
%arrayidx.1 = getelementptr inbounds i32, i32* %p, i64 1
%arrayidx.2 = getelementptr inbounds i32, i32* %p, i64 2
%arrayidx.3 = getelementptr inbounds i32, i32* %p, i64 3
%arrayidx.4 = getelementptr inbounds i32, i32* %p, i64 4
%arrayidx.5 = getelementptr inbounds i32, i32* %p, i64 5
%arrayidx.6 = getelementptr inbounds i32, i32* %p, i64 6
%arrayidx.7 = getelementptr inbounds i32, i32* %p, i64 7
br label %for.body
for.body:
%sum = phi i32 [ 0, %entry ], [ %add.7, %for.body ]
%tmp = load i32, i32* %p, align 4
%mul = mul i32 %tmp, 42
%add = add i32 %mul, %sum
%tmp5 = load i32, i32* %arrayidx.1, align 4
%mul.1 = mul i32 %tmp5, 42
%add.1 = add i32 %mul.1, %add
%tmp6 = load i32, i32* %arrayidx.2, align 4
%mul.2 = mul i32 %tmp6, 42
%add.2 = add i32 %mul.2, %add.1
%tmp7 = load i32, i32* %arrayidx.3, align 4
%mul.3 = mul i32 %tmp7, 42
%add.3 = add i32 %mul.3, %add.2
%tmp8 = load i32, i32* %arrayidx.4, align 4
%mul.4 = mul i32 %tmp8, 42
%add.4 = add i32 %mul.4, %add.3
%tmp9 = load i32, i32* %arrayidx.5, align 4
%mul.5 = mul i32 %tmp9, 42
%add.5 = add i32 %mul.5, %add.4
%tmp10 = load i32, i32* %arrayidx.6, align 4
%mul.6 = mul i32 %tmp10, 42
%add.6 = add i32 %mul.6, %add.5
%tmp11 = load i32, i32* %arrayidx.7, align 4
%mul.7 = mul i32 %tmp11, 42
%add.7 = add i32 %mul.7, %add.6
br i1 true, label %for.end, label %for.body
for.end:
ret i32 %add.7
}
;void foo();
;
;int test2(unsigned int *p, unsigned int *q) {
; int sum = 0;
; #pragma nounroll
; for (int y = 0; y < 2; y++) {
; // Inner loop gets unrolled
; for (int x = 0; x < 8; x++) {
; sum += p[x] * q[x];
; }
; // Dummy call to keep outer loop alive
; foo();
; }
; return sum;
;}
define i32 @test2(i32* nocapture readonly %p, i32* nocapture readonly %q) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ARRAYIDX_P_1:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1
; CHECK-NEXT: [[ARRAYIDX_P_2:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 2
; CHECK-NEXT: [[ARRAYIDX_P_3:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 3
; CHECK-NEXT: [[ARRAYIDX_P_4:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 4
; CHECK-NEXT: [[ARRAYIDX_P_5:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 5
; CHECK-NEXT: [[ARRAYIDX_P_6:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 6
; CHECK-NEXT: [[ARRAYIDX_P_7:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 7
; CHECK-NEXT: [[ARRAYIDX_Q_1:%.*]] = getelementptr inbounds i32, i32* [[Q:%.*]], i64 1
; CHECK-NEXT: [[ARRAYIDX_Q_2:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 2
; CHECK-NEXT: [[ARRAYIDX_Q_3:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 3
; CHECK-NEXT: [[ARRAYIDX_Q_4:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 4
; CHECK-NEXT: [[ARRAYIDX_Q_5:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 5
; CHECK-NEXT: [[ARRAYIDX_Q_6:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 6
; CHECK-NEXT: [[ARRAYIDX_Q_7:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 7
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[SUM:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_EXTRA:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[P]] to <8 x i32>*
; CHECK-NEXT: [[TMP1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP0]], align 4
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[Q]] to <8 x i32>*
; CHECK-NEXT: [[TMP3:%.*]] = load <8 x i32>, <8 x i32>* [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = mul <8 x i32> [[TMP1]], [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.experimental.vector.reduce.add.v8i32(<8 x i32> [[TMP4]])
; CHECK-NEXT: [[OP_EXTRA]] = add i32 [[TMP5]], [[SUM]]
; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret i32 [[OP_EXTRA]]
;
entry:
%arrayidx.p.1 = getelementptr inbounds i32, i32* %p, i64 1
%arrayidx.p.2 = getelementptr inbounds i32, i32* %p, i64 2
%arrayidx.p.3 = getelementptr inbounds i32, i32* %p, i64 3
%arrayidx.p.4 = getelementptr inbounds i32, i32* %p, i64 4
%arrayidx.p.5 = getelementptr inbounds i32, i32* %p, i64 5
%arrayidx.p.6 = getelementptr inbounds i32, i32* %p, i64 6
%arrayidx.p.7 = getelementptr inbounds i32, i32* %p, i64 7
%arrayidx.q.1 = getelementptr inbounds i32, i32* %q, i64 1
%arrayidx.q.2 = getelementptr inbounds i32, i32* %q, i64 2
%arrayidx.q.3 = getelementptr inbounds i32, i32* %q, i64 3
%arrayidx.q.4 = getelementptr inbounds i32, i32* %q, i64 4
%arrayidx.q.5 = getelementptr inbounds i32, i32* %q, i64 5
%arrayidx.q.6 = getelementptr inbounds i32, i32* %q, i64 6
%arrayidx.q.7 = getelementptr inbounds i32, i32* %q, i64 7
br label %for.body
for.body:
%sum = phi i32 [ 0, %entry ], [ %add.7, %for.body ]
%tmpp = load i32, i32* %p, align 4
%tmpq = load i32, i32* %q, align 4
%mul = mul i32 %tmpp, %tmpq
%add = add i32 %mul, %sum
%tmp5p = load i32, i32* %arrayidx.p.1, align 4
%tmp5q = load i32, i32* %arrayidx.q.1, align 4
%mul.1 = mul i32 %tmp5p, %tmp5q
%add.1 = add i32 %mul.1, %add
%tmp6p = load i32, i32* %arrayidx.p.2, align 4
%tmp6q = load i32, i32* %arrayidx.q.2, align 4
%mul.2 = mul i32 %tmp6p, %tmp6q
%add.2 = add i32 %mul.2, %add.1
%tmp7p = load i32, i32* %arrayidx.p.3, align 4
%tmp7q = load i32, i32* %arrayidx.q.3, align 4
%mul.3 = mul i32 %tmp7p, %tmp7q
%add.3 = add i32 %mul.3, %add.2
%tmp8p = load i32, i32* %arrayidx.p.4, align 4
%tmp8q = load i32, i32* %arrayidx.q.4, align 4
%mul.4 = mul i32 %tmp8p, %tmp8q
%add.4 = add i32 %mul.4, %add.3
%tmp9p = load i32, i32* %arrayidx.p.5, align 4
%tmp9q = load i32, i32* %arrayidx.q.5, align 4
%mul.5 = mul i32 %tmp9p, %tmp9q
%add.5 = add i32 %mul.5, %add.4
%tmp10p = load i32, i32* %arrayidx.p.6, align 4
%tmp10q = load i32, i32* %arrayidx.q.6, align 4
%mul.6 = mul i32 %tmp10p, %tmp10q
%add.6 = add i32 %mul.6, %add.5
%tmp11p = load i32, i32* %arrayidx.p.7, align 4
%tmp11q = load i32, i32* %arrayidx.q.7, align 4
%mul.7 = mul i32 %tmp11p, %tmp11q
%add.7 = add i32 %mul.7, %add.6
br i1 true, label %for.end, label %for.body
for.end:
ret i32 %add.7
}
;void foo();
;
;int test3(unsigned int *p, unsigned int *q) {
; int sum = 0;
; #pragma nounroll
; for (int y = 0; y < 2; y++) {
; // Inner loop gets unrolled
; for (int x = 0; x < 8; x++) {
; sum += p[x] * q[7-x];
; }
; // Dummy call to keep outer loop alive
; foo();
; }
; return sum;
;}
define i32 @test3(i32* nocapture readonly %p, i32* nocapture readonly %q) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ARRAYIDX_P_1:%.*]] = getelementptr inbounds i32, i32* [[P:%.*]], i64 1
; CHECK-NEXT: [[ARRAYIDX_P_2:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 2
; CHECK-NEXT: [[ARRAYIDX_P_3:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 3
; CHECK-NEXT: [[ARRAYIDX_P_4:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 4
; CHECK-NEXT: [[ARRAYIDX_P_5:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 5
; CHECK-NEXT: [[ARRAYIDX_P_6:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 6
; CHECK-NEXT: [[ARRAYIDX_P_7:%.*]] = getelementptr inbounds i32, i32* [[P]], i64 7
; CHECK-NEXT: [[ARRAYIDX_Q_1:%.*]] = getelementptr inbounds i32, i32* [[Q:%.*]], i64 1
; CHECK-NEXT: [[ARRAYIDX_Q_2:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 2
; CHECK-NEXT: [[ARRAYIDX_Q_3:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 3
; CHECK-NEXT: [[ARRAYIDX_Q_4:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 4
; CHECK-NEXT: [[ARRAYIDX_Q_5:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 5
; CHECK-NEXT: [[ARRAYIDX_Q_6:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 6
; CHECK-NEXT: [[ARRAYIDX_Q_7:%.*]] = getelementptr inbounds i32, i32* [[Q]], i64 7
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[SUM:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_EXTRA:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[P]] to <8 x i32>*
; CHECK-NEXT: [[TMP1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP0]], align 4
; CHECK-NEXT: [[REORDER_SHUFFLE:%.*]] = shufflevector <8 x i32> [[TMP1]], <8 x i32> undef, <8 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0>
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32* [[Q]] to <8 x i32>*
; CHECK-NEXT: [[TMP3:%.*]] = load <8 x i32>, <8 x i32>* [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = mul <8 x i32> [[REORDER_SHUFFLE]], [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.experimental.vector.reduce.add.v8i32(<8 x i32> [[TMP4]])
; CHECK-NEXT: [[OP_EXTRA]] = add i32 [[TMP5]], [[SUM]]
; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret i32 [[OP_EXTRA]]
;
entry:
%arrayidx.p.1 = getelementptr inbounds i32, i32* %p, i64 1
%arrayidx.p.2 = getelementptr inbounds i32, i32* %p, i64 2
%arrayidx.p.3 = getelementptr inbounds i32, i32* %p, i64 3
%arrayidx.p.4 = getelementptr inbounds i32, i32* %p, i64 4
%arrayidx.p.5 = getelementptr inbounds i32, i32* %p, i64 5
%arrayidx.p.6 = getelementptr inbounds i32, i32* %p, i64 6
%arrayidx.p.7 = getelementptr inbounds i32, i32* %p, i64 7
%arrayidx.q.1 = getelementptr inbounds i32, i32* %q, i64 1
%arrayidx.q.2 = getelementptr inbounds i32, i32* %q, i64 2
%arrayidx.q.3 = getelementptr inbounds i32, i32* %q, i64 3
%arrayidx.q.4 = getelementptr inbounds i32, i32* %q, i64 4
%arrayidx.q.5 = getelementptr inbounds i32, i32* %q, i64 5
%arrayidx.q.6 = getelementptr inbounds i32, i32* %q, i64 6
%arrayidx.q.7 = getelementptr inbounds i32, i32* %q, i64 7
br label %for.body
for.body:
%sum = phi i32 [ 0, %entry ], [ %add.7, %for.body ]
%tmpp = load i32, i32* %p, align 4
%tmpq = load i32, i32* %arrayidx.q.7, align 4
%mul = mul i32 %tmpp, %tmpq
%add = add i32 %mul, %sum
%tmp5p = load i32, i32* %arrayidx.p.1, align 4
%tmp5q = load i32, i32* %arrayidx.q.6, align 4
%mul.1 = mul i32 %tmp5p, %tmp5q
%add.1 = add i32 %mul.1, %add
%tmp6p = load i32, i32* %arrayidx.p.2, align 4
%tmp6q = load i32, i32* %arrayidx.q.5, align 4
%mul.2 = mul i32 %tmp6p, %tmp6q
%add.2 = add i32 %mul.2, %add.1
%tmp7p = load i32, i32* %arrayidx.p.3, align 4
%tmp7q = load i32, i32* %arrayidx.q.4, align 4
%mul.3 = mul i32 %tmp7p, %tmp7q
%add.3 = add i32 %mul.3, %add.2
%tmp8p = load i32, i32* %arrayidx.p.4, align 4
%tmp8q = load i32, i32* %arrayidx.q.3, align 4
%mul.4 = mul i32 %tmp8p, %tmp8q
%add.4 = add i32 %mul.4, %add.3
%tmp9p = load i32, i32* %arrayidx.p.5, align 4
%tmp9q = load i32, i32* %arrayidx.q.2, align 4
%mul.5 = mul i32 %tmp9p, %tmp9q
%add.5 = add i32 %mul.5, %add.4
%tmp10p = load i32, i32* %arrayidx.p.6, align 4
%tmp10q = load i32, i32* %arrayidx.q.1, align 4
%mul.6 = mul i32 %tmp10p, %tmp10q
%add.6 = add i32 %mul.6, %add.5
%tmp11p = load i32, i32* %arrayidx.p.7, align 4
%tmp11q = load i32, i32* %q, align 4
%mul.7 = mul i32 %tmp11p, %tmp11q
%add.7 = add i32 %mul.7, %add.6
br i1 true, label %for.end, label %for.body
for.end:
ret i32 %add.7
}