24 lines
555 B
LLVM
24 lines
555 B
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
|
|
|
|
; CHECK: test1
|
|
define double @test1(float %a, double %b) nounwind readnone ssp uwtable {
|
|
; CHECK-NOT: fsub
|
|
; CHECK: fpext
|
|
; CHECK: fadd
|
|
%1 = fsub float -0.000000e+00, %a
|
|
%2 = fpext float %1 to double
|
|
%3 = fsub double %b, %2
|
|
ret double %3
|
|
}
|
|
|
|
; CHECK: test2
|
|
define double @test2(float %a, double %b) nounwind readnone ssp uwtable {
|
|
; CHECK-NOT: fsub
|
|
; CHECK: fpext
|
|
; CHECK: fadd fast
|
|
%1 = fsub float -0.000000e+00, %a
|
|
%2 = fpext float %1 to double
|
|
%3 = fsub fast double %b, %2
|
|
ret double %3
|
|
}
|