mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
8db493c4e1
Selection conditions may be vectors or scalars. Make sure InstCombine doesn't indiscriminately assume that a select which is value dependent on another select have identical select condition types. This fixes PR22773. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231156 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
1.1 KiB
LLVM
35 lines
1.1 KiB
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
|
|
|
|
; CHECK: @foo1
|
|
define float @foo1(float %a) #0 {
|
|
; CHECK-NOT: xor
|
|
%b = fcmp ogt float %a, 0.000000e+00
|
|
%c = select i1 %b, float %a, float 0.000000e+00
|
|
%d = fcmp olt float %c, 1.000000e+00
|
|
%f = select i1 %d, float %c, float 1.000000e+00
|
|
ret float %f
|
|
}
|
|
|
|
; CHECK: @foo2
|
|
define float @foo2(float %a) #0 {
|
|
; CHECK-NOT: xor
|
|
%b = fcmp ogt float %a, 0.000000e+00
|
|
%c = select i1 %b, float %a, float 0.000000e+00
|
|
%d = fcmp olt float %c, 1.000000e+00
|
|
%e = select i1 %b, float %a, float 0.000000e+00
|
|
%f = select i1 %d, float %e, float 1.000000e+00
|
|
ret float %f
|
|
}
|
|
|
|
; CHECK-LABEL: @foo3
|
|
define <2 x i32> @foo3(<2 x i1> %vec_bool, i1 %bool, <2 x i32> %V) {
|
|
; CHECK: %[[sel0:.*]] = select <2 x i1> %vec_bool, <2 x i32> zeroinitializer, <2 x i32> %V
|
|
; CHECK: %[[sel1:.*]] = select i1 %bool, <2 x i32> %[[sel0]], <2 x i32> %V
|
|
; CHECK: ret <2 x i32> %[[sel1]]
|
|
%sel0 = select <2 x i1> %vec_bool, <2 x i32> zeroinitializer, <2 x i32> %V
|
|
%sel1 = select i1 %bool, <2 x i32> %sel0, <2 x i32> %V
|
|
ret <2 x i32> %sel1
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone ssp uwtable }
|