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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
define i32 @sub_self(i32 %A) {
; CHECK-LABEL: @sub_self(
; CHECK-NEXT: ret i32 0
;
%B = sub i32 %A, %A
ret i32 %B
}
define <2 x i32> @sub_self_vec(<2 x i32> %A) {
; CHECK-LABEL: @sub_self_vec(
; CHECK-NEXT: ret <2 x i32> zeroinitializer
;
%B = sub <2 x i32> %A, %A
ret <2 x i32> %B
}
define i32 @sub_zero(i32 %A) {
; CHECK-LABEL: @sub_zero(
; CHECK-NEXT: ret i32 [[A:%.*]]
;
%B = sub i32 %A, 0
ret i32 %B
}
define <2 x i32> @sub_zero_vec(<2 x i32> %A) {
; CHECK-LABEL: @sub_zero_vec(
; CHECK-NEXT: ret <2 x i32> [[A:%.*]]
;
%B = sub <2 x i32> %A, <i32 0, i32 poison>
ret <2 x i32> %B
}
define i32 @neg_neg(i32 %A) {
; CHECK-LABEL: @neg_neg(
; CHECK-NEXT: ret i32 [[A:%.*]]
;
%B = sub i32 0, %A
%C = sub i32 0, %B
ret i32 %C
}
define <2 x i32> @neg_neg_vec(<2 x i32> %A) {
; CHECK-LABEL: @neg_neg_vec(
; CHECK-NEXT: ret <2 x i32> [[A:%.*]]
;
%B = sub <2 x i32> <i32 0, i32 poison>, %A
%C = sub <2 x i32> <i32 0, i32 poison>, %B
ret <2 x i32> %C
}
define i32 @poison1(i32 %x) {
; CHECK-LABEL: @poison1(
; CHECK-NEXT: ret i32 poison
;
%v = sub i32 %x, poison
ret i32 %v
}
define i32 @poison2(i32 %x) {
; CHECK-LABEL: @poison2(
; CHECK-NEXT: ret i32 poison
;
%v = sub i32 poison, %x
ret i32 %v
}
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