+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instsimplify -S | FileCheck %s
define i32 @negated_operand(i32 %x) {
%rem = srem <2 x i32> %xy, %yx
ret <2 x i32> %rem
}
+
+define <3 x i32> @negated_operand_vec_undef(<3 x i32> %x) {
+; CHECK-LABEL: @negated_operand_vec_undef(
+; CHECK-NEXT: [[NEGX:%.*]] = sub <3 x i32> <i32 0, i32 undef, i32 0>, [[X:%.*]]
+; CHECK-NEXT: [[REM:%.*]] = srem <3 x i32> [[NEGX]], [[X]]
+; CHECK-NEXT: ret <3 x i32> [[REM]]
+;
+ %negx = sub <3 x i32> <i32 0, i32 undef, i32 0>, %x
+ %rem = srem <3 x i32> %negx, %x
+ ret <3 x i32> %rem
+}
+
+define <2 x i32> @negated_operand_vec_nonsplat(<2 x i32> %x) {
+; CHECK-LABEL: @negated_operand_vec_nonsplat(
+; CHECK-NEXT: [[NEGX:%.*]] = sub <2 x i32> <i32 0, i32 1>, [[X:%.*]]
+; CHECK-NEXT: [[REM:%.*]] = srem <2 x i32> [[NEGX]], [[X]]
+; CHECK-NEXT: ret <2 x i32> [[REM]]
+;
+ %negx = sub <2 x i32> <i32 0, i32 1>, %x ; not 0, don't fold
+ %rem = srem <2 x i32> %negx, %x
+ ret <2 x i32> %rem
+}
+
+define i32 @negated_operand_commute(i32 %x) {
+; CHECK-LABEL: @negated_operand_commute(
+; CHECK-NEXT: [[NEGX:%.*]] = sub i32 0, [[X:%.*]]
+; CHECK-NEXT: [[REM:%.*]] = srem i32 [[X]], [[NEGX]]
+; CHECK-NEXT: ret i32 [[REM]]
+;
+ %negx = sub i32 0, %x
+ %rem = srem i32 %x, %negx
+ ret i32 %rem
+}