1 ; RUN: opt < %s -instcombine -S | FileCheck %s
3 ; (V * C1) * C2 => V * (C1 * C2)
4 ; Verify this doesn't fold when no fast-math-flags are specified
5 define <4 x float> @test_fmul(<4 x float> %V) {
6 ; CHECK-LABEL: @test_fmul(
7 ; CHECK-NEXT: [[TMP1:%.*]] = fmul <4 x float> [[V:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
8 ; CHECK-NEXT: [[TMP2:%.*]] = fmul <4 x float> [[TMP1]], <float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00>
9 ; CHECK-NEXT: ret <4 x float> [[TMP2]]
10 %Y = fmul <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
11 %Z = fmul <4 x float> %Y, < float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00 >
15 ; (V * C1) * C2 => V * (C1 * C2)
16 ; Verify this folds with 'fast'
17 define <4 x float> @test_fmul_fast(<4 x float> %V) {
18 ; CHECK-LABEL: @test_fmul_fast(
19 ; CHECK-NEXT: [[TMP1:%.*]] = fmul fast <4 x float> [[V:%.*]], <float 1.000000e+00, float 4.000000e+05, float -9.000000e+00, float 1.600000e+01>
20 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
21 %Y = fmul fast <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
22 %Z = fmul fast <4 x float> %Y, < float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00 >
26 ; (V * C1) * C2 => V * (C1 * C2)
27 ; Verify this folds with 'reassoc' and 'nsz' ('nsz' not technically required)
28 define <4 x float> @test_fmul_reassoc_nsz(<4 x float> %V) {
29 ; CHECK-LABEL: @test_fmul_reassoc_nsz(
30 ; CHECK-NEXT: [[TMP1:%.*]] = fmul reassoc nsz <4 x float> [[V:%.*]], <float 1.000000e+00, float 4.000000e+05, float -9.000000e+00, float 1.600000e+01>
31 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
32 %Y = fmul reassoc nsz <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
33 %Z = fmul reassoc nsz <4 x float> %Y, < float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00 >
37 ; (V * C1) * C2 => V * (C1 * C2)
38 ; TODO: This doesn't require 'nsz'. It should fold to V * { 1.0, 4.0e+05, -9.0, 16.0 }
39 define <4 x float> @test_fmul_reassoc(<4 x float> %V) {
40 ; CHECK-LABEL: @test_fmul_reassoc(
41 ; CHECK-NEXT: [[TMP1:%.*]] = fmul reassoc <4 x float> [[V:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
42 ; CHECK-NEXT: [[TMP2:%.*]] = fmul reassoc <4 x float> [[TMP1]], <float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00>
43 ; CHECK-NEXT: ret <4 x float> [[TMP2]]
44 %Y = fmul reassoc <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
45 %Z = fmul reassoc <4 x float> %Y, < float 1.000000e+00, float 2.000000e+05, float -3.000000e+00, float 4.000000e+00 >
49 ; (V + C1) + C2 => V + (C1 + C2)
50 ; Verify this doesn't fold when no fast-math-flags are specified
51 define <4 x float> @test_fadd(<4 x float> %V) {
52 ; CHECK-LABEL: @test_fadd(
53 ; CHECK-NEXT: [[TMP1:%.*]] = fadd <4 x float> [[V:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
54 ; CHECK-NEXT: [[TMP2:%.*]] = fadd <4 x float> [[TMP1]], <float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00>
55 ; CHECK-NEXT: ret <4 x float> [[TMP2]]
56 %Y = fadd <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
57 %Z = fadd <4 x float> %Y, < float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00 >
61 ; (V + C1) + C2 => V + (C1 + C2)
62 ; Verify this folds with 'fast'
63 define <4 x float> @test_fadd_fast(<4 x float> %V) {
64 ; CHECK-LABEL: @test_fadd_fast(
65 ; CHECK-NEXT: [[TMP1:%.*]] = fadd fast <4 x float> [[V:%.*]], <float 2.000000e+00, float 4.000000e+00, float 0.000000e+00, float 8.000000e+00>
66 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
67 %Y = fadd fast <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
68 %Z = fadd fast <4 x float> %Y, < float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00 >
72 ; (V + C1) + C2 => V + (C1 + C2)
73 ; Verify this folds with 'reassoc' and 'nsz' ('nsz' not technically required)
74 define <4 x float> @test_fadd_reassoc_nsz(<4 x float> %V) {
75 ; CHECK-LABEL: @test_fadd_reassoc_nsz(
76 ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz <4 x float> [[V:%.*]], <float 2.000000e+00, float 4.000000e+00, float 0.000000e+00, float 8.000000e+00>
77 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
78 %Y = fadd reassoc nsz <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
79 %Z = fadd reassoc nsz <4 x float> %Y, < float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00 >
83 ; (V + C1) + C2 => V + (C1 + C2)
84 ; TODO: This doesn't require 'nsz'. It should fold to V + { 2.0, 4.0, 0.0, 8.0 }
85 define <4 x float> @test_fadd_reassoc(<4 x float> %V) {
86 ; CHECK-LABEL: @test_fadd_reassoc(
87 ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc <4 x float> [[V:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
88 ; CHECK-NEXT: [[TMP2:%.*]] = fadd reassoc <4 x float> [[TMP1]], <float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00>
89 ; CHECK-NEXT: ret <4 x float> [[TMP2]]
90 %Y = fadd reassoc <4 x float> %V, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
91 %Z = fadd reassoc <4 x float> %Y, < float 1.000000e+00, float 2.000000e+00, float -3.000000e+00, float 4.000000e+00 >
95 ; ( A + C1 ) + ( B + -C1 )
96 ; Verify this doesn't fold when no fast-math-flags are specified
97 define <4 x float> @test_fadds_cancel_(<4 x float> %A, <4 x float> %B) {
98 ; CHECK-LABEL: @test_fadds_cancel_(
99 ; CHECK-NEXT: [[TMP1:%.*]] = fadd <4 x float> [[A:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
100 ; CHECK-NEXT: [[TMP2:%.*]] = fadd <4 x float> [[B:%.*]], <float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00>
101 ; CHECK-NEXT: [[TMP3:%.*]] = fadd <4 x float> [[TMP1]], [[TMP2]]
102 ; CHECK-NEXT: ret <4 x float> [[TMP3]]
103 %X = fadd <4 x float> %A, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
104 %Y = fadd <4 x float> %B, < float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00 >
105 %Z = fadd <4 x float> %X, %Y
109 ; ( A + C1 ) + ( B + -C1 )
110 ; Verify this folds to 'A + B' with 'fast'
111 define <4 x float> @test_fadds_cancel_fast(<4 x float> %A, <4 x float> %B) {
112 ; CHECK-LABEL: @test_fadds_cancel_fast(
113 ; CHECK-NEXT: [[TMP1:%.*]] = fadd fast <4 x float> [[A:%.*]], [[B:%.*]]
114 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
115 %X = fadd fast <4 x float> %A, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
116 %Y = fadd fast <4 x float> %B, < float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00 >
117 %Z = fadd fast <4 x float> %X, %Y
121 ; ( A + C1 ) + ( B + -C1 )
122 ; Verify this folds to 'A + B' with 'reassoc' and 'nsz' ('nsz' is required)
123 define <4 x float> @test_fadds_cancel_reassoc_nsz(<4 x float> %A, <4 x float> %B) {
124 ; CHECK-LABEL: @test_fadds_cancel_reassoc_nsz(
125 ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz <4 x float> [[A:%.*]], [[B:%.*]]
126 ; CHECK-NEXT: ret <4 x float> [[TMP1]]
127 %X = fadd reassoc nsz <4 x float> %A, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
128 %Y = fadd reassoc nsz <4 x float> %B, < float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00 >
129 %Z = fadd reassoc nsz <4 x float> %X, %Y
133 ; ( A + C1 ) + ( B + -C1 )
134 ; Verify the fold is not done with only 'reassoc' ('nsz' is required).
135 define <4 x float> @test_fadds_cancel_reassoc(<4 x float> %A, <4 x float> %B) {
136 ; CHECK-LABEL: @test_fadds_cancel_reassoc(
137 ; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc <4 x float> [[A:%.*]], <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>
138 ; CHECK-NEXT: [[TMP2:%.*]] = fadd reassoc <4 x float> [[B:%.*]], <float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00>
139 ; CHECK-NEXT: [[TMP3:%.*]] = fadd reassoc <4 x float> [[TMP1]], [[TMP2]]
140 ; CHECK-NEXT: ret <4 x float> [[TMP3]]
141 %X = fadd reassoc <4 x float> %A, < float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 >
142 %Y = fadd reassoc <4 x float> %B, < float -1.000000e+00, float -2.000000e+00, float -3.000000e+00, float -4.000000e+00 >
143 %Z = fadd reassoc <4 x float> %X, %Y