1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -passes=reassociate < %s | FileCheck %s
4 define void @main(float, float) {
6 ; CHECK-NEXT: wrapper_entry:
7 ; CHECK-NEXT: [[TMP2:%.*]] = fsub float undef, [[TMP0:%.*]]
8 ; CHECK-NEXT: [[TMP3:%.*]] = fsub float undef, [[TMP1:%.*]]
9 ; CHECK-NEXT: [[TMP4:%.*]] = call float @llvm.rsqrt.f32(float undef)
10 ; CHECK-NEXT: [[REASS_ADD2:%.*]] = fadd fast float [[TMP3]], [[TMP2]]
11 ; CHECK-NEXT: [[REASS_MUL3:%.*]] = fmul fast float [[TMP4]], [[REASS_ADD2]]
12 ; CHECK-NEXT: [[REASS_ADD1:%.*]] = fadd fast float [[REASS_MUL3]], [[TMP4]]
13 ; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast float [[REASS_ADD1]], undef
14 ; CHECK-NEXT: [[TMP5:%.*]] = call float @foo2(float [[REASS_MUL]], float 0.000000e+00)
15 ; CHECK-NEXT: [[MUL36:%.*]] = fmul fast float [[TMP5]], 1.500000e+00
16 ; CHECK-NEXT: call void @foo1(i32 4, float [[MUL36]])
17 ; CHECK-NEXT: ret void
20 %2 = fsub float undef, %0
21 %3 = fsub float undef, %1
22 %4 = call float @llvm.rsqrt.f32(float undef)
23 %5 = fmul fast float undef, %4
24 %6 = fmul fast float %2, %4
25 %7 = fmul fast float %3, %4
26 %8 = fmul fast float %5, undef
27 %9 = fmul fast float %6, undef
28 %10 = fmul fast float %7, undef
29 %11 = fadd fast float %8, %9
30 %12 = fadd fast float %11, %10
31 %13 = call float @foo2(float %12, float 0.000000e+00)
32 %mul36 = fmul fast float %13, 1.500000e+00
33 call void @foo1(i32 4, float %mul36)
37 declare void @foo1(i32, float)
39 declare float @foo2(float, float) #1
41 declare float @llvm.rsqrt.f32(float) #1
43 attributes #0 = { argmemonly nounwind }
44 attributes #1 = { nounwind readnone }