mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-08 12:08:46 +00:00
c52635b197
Differential Revision: https://reviews.llvm.org/D49216 llvm-svn: 336881
52 lines
1.1 KiB
LLVM
52 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instsimplify -S | FileCheck %s
|
|
|
|
define i32 @common_sub_operand(i32 %X, i32 %Y) {
|
|
; CHECK-LABEL: @common_sub_operand(
|
|
; CHECK-NEXT: ret i32 [[X:%.*]]
|
|
;
|
|
%Z = sub i32 %X, %Y
|
|
%Q = add i32 %Z, %Y
|
|
ret i32 %Q
|
|
}
|
|
|
|
define i32 @negated_operand(i32 %x) {
|
|
; CHECK-LABEL: @negated_operand(
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
%negx = sub i32 0, %x
|
|
%r = add i32 %negx, %x
|
|
ret i32 %r
|
|
}
|
|
|
|
define <2 x i32> @negated_operand_commute_vec(<2 x i32> %x) {
|
|
; CHECK-LABEL: @negated_operand_commute_vec(
|
|
; CHECK-NEXT: ret <2 x i32> zeroinitializer
|
|
;
|
|
%negx = sub <2 x i32> zeroinitializer, %x
|
|
%r = add <2 x i32> %x, %negx
|
|
ret <2 x i32> %r
|
|
}
|
|
|
|
define i8 @knownnegation(i8 %x, i8 %y) {
|
|
; CHECK-LABEL: @knownnegation(
|
|
; CHECK-NEXT: ret i8 0
|
|
;
|
|
%xy = sub i8 %x, %y
|
|
%yx = sub i8 %y, %x
|
|
%r = add i8 %xy, %yx
|
|
ret i8 %r
|
|
}
|
|
|
|
define <2 x i8> @knownnegation_commute_vec(<2 x i8> %x, <2 x i8> %y) {
|
|
; CHECK-LABEL: @knownnegation_commute_vec(
|
|
; CHECK-NEXT: ret <2 x i8> zeroinitializer
|
|
;
|
|
%xy = sub <2 x i8> %x, %y
|
|
%yx = sub <2 x i8> %y, %x
|
|
%r = add <2 x i8> %yx, %xy
|
|
ret <2 x i8> %r
|
|
}
|
|
|
|
|