forked from OSchip/llvm-project
45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; RUN: opt -reassociate -S < %s | FileCheck %s
|
|
|
|
declare void @use(float)
|
|
|
|
define void @test1(float %x, float %y) {
|
|
; CHECK-LABEL: test1
|
|
; CHECK: fmul fast float %y, %x
|
|
; CHECK: fmul fast float %y, %x
|
|
; CHECK: fsub fast float %1, %2
|
|
; CHECK: call void @use(float %{{.*}})
|
|
; CHECK: call void @use(float %{{.*}})
|
|
|
|
%1 = fmul fast float %x, %y
|
|
%2 = fmul fast float %y, %x
|
|
%3 = fsub fast float %1, %2
|
|
call void @use(float %1)
|
|
call void @use(float %3)
|
|
ret void
|
|
}
|
|
|
|
define float @test2(float %x, float %y) {
|
|
; CHECK-LABEL: test2
|
|
; CHECK-NEXT: fmul fast float %y, %x
|
|
; CHECK-NEXT: fmul fast float %y, %x
|
|
; CHECK-NEXT: fsub fast float %1, %2
|
|
; CHECK-NEXT: ret float %3
|
|
|
|
%1 = fmul fast float %x, %y
|
|
%2 = fmul fast float %y, %x
|
|
%3 = fsub fast float %1, %2
|
|
ret float %3
|
|
}
|
|
|
|
define float @test3(float %x, float %y) {
|
|
; CHECK-LABEL: test3
|
|
; CHECK-NEXT: %factor = fmul fast float %x, 2.000000e+00
|
|
; CHECK-NEXT: %tmp1 = fmul fast float %factor, %y
|
|
; CHECK-NEXT: ret float %tmp1
|
|
|
|
%1 = fmul fast float %x, %y
|
|
%2 = fmul fast float %y, %x
|
|
%3 = fadd fast float %1, %2
|
|
ret float %3
|
|
}
|