xref: /llvm-project/llvm/test/Transforms/NewGVN/commute.ll (revision ace9b6bbf5e25d8acd1c467dd4f7995e79bfe4c5) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=newgvn -S < %s | FileCheck %s
3
4declare void @use(i32, i32)
5
6define void @binop(i32 %x, i32 %y) {
7; CHECK-LABEL: @binop(
8; CHECK-NEXT:    [[ADD1:%.*]] = add i32 [[X:%.*]], [[Y:%.*]]
9; CHECK-NEXT:    call void @use(i32 [[ADD1]], i32 [[ADD1]])
10; CHECK-NEXT:    ret void
11;
12  %add1 = add i32 %x, %y
13  %add2 = add i32 %y, %x
14  call void @use(i32 %add1, i32 %add2)
15  ret void
16}
17
18declare void @vse(i1, i1)
19
20define void @cmp(i32 %x, i32 %y) {
21; CHECK-LABEL: @cmp(
22; CHECK-NEXT:    [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], [[Y:%.*]]
23; CHECK-NEXT:    call void @vse(i1 [[CMP1]], i1 [[CMP1]])
24; CHECK-NEXT:    ret void
25;
26  %cmp1 = icmp ult i32 %x, %y
27  %cmp2 = icmp ugt i32 %y, %x
28  call void @vse(i1 %cmp1, i1 %cmp2)
29  ret void
30}
31
32declare i32 @llvm.smax.i32(i32, i32)
33
34define void @intrinsic(i32 %x, i32 %y) {
35; CHECK-LABEL: @intrinsic(
36; CHECK-NEXT:    [[M1:%.*]] = call i32 @llvm.smax.i32(i32 [[X:%.*]], i32 [[Y:%.*]])
37; CHECK-NEXT:    call void @use(i32 [[M1]], i32 [[M1]])
38; CHECK-NEXT:    ret void
39;
40  %m1 = call i32 @llvm.smax.i32(i32 %x, i32 %y)
41  %m2 = call i32 @llvm.smax.i32(i32 %y, i32 %x)
42  call void @use(i32 %m1, i32 %m2)
43  ret void
44}
45
46declare i16 @llvm.smul.fix.i16(i16, i16, i32)
47declare i16 @llvm.umul.fix.i16(i16, i16, i32)
48
49define i16 @intrinsic_3_args(i16 %x, i16 %y) {
50; CHECK-LABEL: @intrinsic_3_args(
51; CHECK-NEXT:    ret i16 0
52;
53  %m1 = call i16 @llvm.smul.fix.i16(i16 %x, i16 %y, i32 1)
54  %m2 = call i16 @llvm.smul.fix.i16(i16 %y, i16 %x, i32 1)
55  %r = sub i16 %m1, %m2
56  ret i16 %r
57}
58
59define i16 @intrinsic_3_args_not_same(i16 %x, i16 %y) {
60; CHECK-LABEL: @intrinsic_3_args_not_same(
61; CHECK-NEXT:    [[M1:%.*]] = call i16 @llvm.umul.fix.i16(i16 [[X:%.*]], i16 [[Y:%.*]], i32 2)
62; CHECK-NEXT:    [[M2:%.*]] = call i16 @llvm.umul.fix.i16(i16 [[Y]], i16 [[X]], i32 1)
63; CHECK-NEXT:    [[R:%.*]] = sub i16 [[M1]], [[M2]]
64; CHECK-NEXT:    ret i16 [[R]]
65;
66  %m1 = call i16 @llvm.umul.fix.i16(i16 %x, i16 %y, i32 2)
67  %m2 = call i16 @llvm.umul.fix.i16(i16 %y, i16 %x, i32 1)
68  %r = sub i16 %m1, %m2
69  ret i16 %r
70}
71
72declare float @llvm.fma.f32(float, float, float)
73
74define float @fma(float %x, float %y) {
75; CHECK-LABEL: @fma(
76; CHECK-NEXT:    [[M1:%.*]] = call float @llvm.fma.f32(float [[X:%.*]], float [[Y:%.*]], float 1.000000e+00)
77; CHECK-NEXT:    [[R:%.*]] = fdiv nnan float [[M1]], [[M1]]
78; CHECK-NEXT:    ret float [[R]]
79;
80  %m1 = call float @llvm.fma.f32(float %x, float %y, float 1.0)
81  %m2 = call float @llvm.fma.f32(float %y, float %x, float 1.0)
82  %r = fdiv nnan float %m1, %m2
83  ret float %r
84}
85
86declare i16 @llvm.sdiv.fix.i16(i16, i16, i32)
87
88define i16 @intrinsic_3_args_not_commutative(i16 %x, i16 %y) {
89; CHECK-LABEL: @intrinsic_3_args_not_commutative(
90; CHECK-NEXT:    [[M1:%.*]] = call i16 @llvm.sdiv.fix.i16(i16 [[X:%.*]], i16 [[Y:%.*]], i32 1)
91; CHECK-NEXT:    [[M2:%.*]] = call i16 @llvm.sdiv.fix.i16(i16 [[Y]], i16 [[X]], i32 1)
92; CHECK-NEXT:    [[R:%.*]] = sub i16 [[M1]], [[M2]]
93; CHECK-NEXT:    ret i16 [[R]]
94;
95  %m1 = call i16 @llvm.sdiv.fix.i16(i16 %x, i16 %y, i32 1)
96  %m2 = call i16 @llvm.sdiv.fix.i16(i16 %y, i16 %x, i32 1)
97  %r = sub i16 %m1, %m2
98  ret i16 %r
99}
100