1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -passes=early-cse < %s | FileCheck %s
6 ; Load-load: the second load can be removed if (assuming unequal masks) the
7 ; second loaded value is a subset of the first loaded value considering the
8 ; non-undef vector elements. In other words, if the second mask is a submask
9 ; of the first one, and the through value of the second load is undef.
11 ; Load-load, second mask is a submask of the first, second through is undef.
12 ; Expect the second load to be removed.
13 define <4 x i32> @f3(ptr %a0, <4 x i32> %a1) {
15 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> [[A1:%.*]])
16 ; CHECK-NEXT: [[V2:%.*]] = add <4 x i32> [[V0]], [[V0]]
17 ; CHECK-NEXT: ret <4 x i32> [[V2]]
19 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> %a1)
20 %v1 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> undef)
21 %v2 = add <4 x i32> %v0, %v1
25 ; Load-load, second mask is a submask of the first, second through is not undef.
26 ; Expect the second load to remain.
27 define <4 x i32> @f4(ptr %a0, <4 x i32> %a1) {
29 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> [[A1:%.*]])
30 ; CHECK-NEXT: [[V1:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
31 ; CHECK-NEXT: [[V2:%.*]] = add <4 x i32> [[V0]], [[V1]]
32 ; CHECK-NEXT: ret <4 x i32> [[V2]]
34 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> %a1)
35 %v1 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
36 %v2 = add <4 x i32> %v0, %v1
40 ; Load-load, second mask is not a submask of the first, second through is undef.
41 ; Expect the second load to remain.
42 define <4 x i32> @f5(ptr %a0, <4 x i32> %a1) {
44 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> [[A1:%.*]])
45 ; CHECK-NEXT: [[V1:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
46 ; CHECK-NEXT: [[V2:%.*]] = add <4 x i32> [[V0]], [[V1]]
47 ; CHECK-NEXT: ret <4 x i32> [[V2]]
49 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> %a1)
50 %v1 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
51 %v2 = add <4 x i32> %v0, %v1
55 ; Store-store: the first store can be removed if the first; mask is a submask
58 ; Store-store, first mask is a submask of the second.
59 ; Expect the first store to be removed.
60 define void @f6(<4 x i32> %a0, ptr %a1) {
62 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0:%.*]], ptr [[A1:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
63 ; CHECK-NEXT: ret void
65 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
66 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
70 ; Store-store, first mask is not a submask of the second.
71 ; Expect both stores to remain.
72 define void @f7(<4 x i32> %a0, ptr %a1) {
74 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0:%.*]], ptr [[A1:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
75 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0]], ptr [[A1]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
76 ; CHECK-NEXT: ret void
78 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
79 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
83 ; Load-store: the store can be removed if the store's mask is a submask of the
86 ; Load-store, second mask is a submask of the first.
87 ; Expect the store to be removed.
88 define <4 x i32> @f8(ptr %a0, <4 x i32> %a1) {
90 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> [[A1:%.*]])
91 ; CHECK-NEXT: ret <4 x i32> [[V0]]
93 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> %a1)
94 call void @llvm.masked.store.v4i32.p0(<4 x i32> %v0, ptr %a0, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
98 ; Load-store, second mask is not a submask of the first.
99 ; Expect the store to remain.
100 define <4 x i32> @f9(ptr %a0, <4 x i32> %a1) {
102 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A0:%.*]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> [[A1:%.*]])
103 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[V0]], ptr [[A0]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
104 ; CHECK-NEXT: ret <4 x i32> [[V0]]
106 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a0, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> %a1)
107 call void @llvm.masked.store.v4i32.p0(<4 x i32> %v0, ptr %a0, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
111 ; Store-load: the load can be removed if load's mask is a submask of the
112 ; store's mask, and the load's through value is undef.
114 ; Store-load, load's mask is a submask of store's mask, thru is undef.
115 ; Expect the load to be removed.
116 define <4 x i32> @fa(<4 x i32> %a0, ptr %a1) {
118 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0:%.*]], ptr [[A1:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
119 ; CHECK-NEXT: ret <4 x i32> [[A0]]
121 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
122 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a1, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> undef)
126 ; Store-load, load's mask is a submask of store's mask, thru is not undef.
127 ; Expect the load to remain.
128 define <4 x i32> @fb(<4 x i32> %a0, ptr %a1) {
130 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0:%.*]], ptr [[A1:%.*]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
131 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A1]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
132 ; CHECK-NEXT: ret <4 x i32> [[V0]]
134 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>)
135 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a1, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i32> zeroinitializer)
139 ; Store-load, load's mask is not a submask of store's mask, thru is undef.
140 ; Expect the load to remain.
141 define <4 x i32> @fc(<4 x i32> %a0, ptr %a1) {
143 ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> [[A0:%.*]], ptr [[A1:%.*]], i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
144 ; CHECK-NEXT: [[V0:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[A1]], i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> undef)
145 ; CHECK-NEXT: ret <4 x i32> [[V0]]
147 call void @llvm.masked.store.v4i32.p0(<4 x i32> %a0, ptr %a1, i32 4, <4 x i1> <i1 true, i1 false, i1 false, i1 true>)
148 %v0 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %a1, i32 4, <4 x i1> <i1 true, i1 true, i1 false, i1 true>, <4 x i32> undef)
152 declare <4 x i32> @llvm.masked.load.v4i32.p0(ptr, i32, <4 x i1>, <4 x i32>)
153 declare void @llvm.masked.store.v4i32.p0(<4 x i32>, ptr, i32, <4 x i1>)