define i8 @umax_umax_constants(i8 %x) {
; CHECK-LABEL: @umax_umax_constants(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umax.i8(i8 [[X:%.*]], i8 9)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umax.i8(i8 7, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umax.i8(i8 %x, i8 9)
%m2 = call i8 @llvm.umax.i8(i8 7, i8 %m)
define i8 @umax_umax_constants_commute1(i8 %x) {
; CHECK-LABEL: @umax_umax_constants_commute1(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umax.i8(i8 -128, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umax.i8(i8 7, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umax.i8(i8 128, i8 %x)
%m2 = call i8 @llvm.umax.i8(i8 7, i8 %m)
define i8 @umax_umax_constants_commute2(i8 %x) {
; CHECK-LABEL: @umax_umax_constants_commute2(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umax.i8(i8 [[X:%.*]], i8 -56)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umax.i8(i8 [[M]], i8 127)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umax.i8(i8 %x, i8 200)
%m2 = call i8 @llvm.umax.i8(i8 %m, i8 127)
define <2 x i8> @umax_umax_constants_commute3(<2 x i8> %x) {
; CHECK-LABEL: @umax_umax_constants_commute3(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.umax.v2i8(<2 x i8> <i8 -2, i8 -2>, <2 x i8> [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call <2 x i8> @llvm.umax.v2i8(<2 x i8> [[M]], <2 x i8> <i8 -128, i8 -128>)
-; CHECK-NEXT: ret <2 x i8> [[M2]]
+; CHECK-NEXT: ret <2 x i8> [[M]]
;
%m = call <2 x i8> @llvm.umax.v2i8(<2 x i8> <i8 254, i8 254>, <2 x i8> %x)
%m2 = call <2 x i8> @llvm.umax.v2i8(<2 x i8> %m, <2 x i8> <i8 128, i8 128>)
define i8 @umin_umin_constants(i8 %x) {
; CHECK-LABEL: @umin_umin_constants(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umin.i8(i8 [[X:%.*]], i8 7)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umin.i8(i8 9, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umin.i8(i8 %x, i8 7)
%m2 = call i8 @llvm.umin.i8(i8 9, i8 %m)
define i8 @umin_umin_constants_commute1(i8 %x) {
; CHECK-LABEL: @umin_umin_constants_commute1(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umin.i8(i8 7, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umin.i8(i8 -128, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umin.i8(i8 7, i8 %x)
%m2 = call i8 @llvm.umin.i8(i8 128, i8 %m)
define <2 x i8> @umin_umin_constants_commute2(<2 x i8> %x) {
; CHECK-LABEL: @umin_umin_constants_commute2(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.umin.v2i8(<2 x i8> [[X:%.*]], <2 x i8> <i8 127, i8 127>)
-; CHECK-NEXT: [[M2:%.*]] = call <2 x i8> @llvm.umin.v2i8(<2 x i8> [[M]], <2 x i8> <i8 -56, i8 undef>)
-; CHECK-NEXT: ret <2 x i8> [[M2]]
+; CHECK-NEXT: ret <2 x i8> [[M]]
;
%m = call <2 x i8> @llvm.umin.v2i8(<2 x i8> %x, <2 x i8> <i8 127, i8 127>)
%m2 = call <2 x i8> @llvm.umin.v2i8(<2 x i8> %m, <2 x i8> <i8 200, i8 undef>)
define i8 @umin_umin_constants_commute3(i8 %x) {
; CHECK-LABEL: @umin_umin_constants_commute3(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.umin.i8(i8 -128, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.umin.i8(i8 [[M]], i8 -2)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.umin.i8(i8 128, i8 %x)
%m2 = call i8 @llvm.umin.i8(i8 %m, i8 254)
define i8 @smax_smax_constants(i8 %x) {
; CHECK-LABEL: @smax_smax_constants(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smax.i8(i8 [[X:%.*]], i8 9)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smax.i8(i8 7, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smax.i8(i8 %x, i8 9)
%m2 = call i8 @llvm.smax.i8(i8 7, i8 %m)
define <2 x i8> @smax_smax_constants_commute1(<2 x i8> %x) {
; CHECK-LABEL: @smax_smax_constants_commute1(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.smax.v2i8(<2 x i8> <i8 7, i8 7>, <2 x i8> [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call <2 x i8> @llvm.smax.v2i8(<2 x i8> <i8 -127, i8 -127>, <2 x i8> [[M]])
-; CHECK-NEXT: ret <2 x i8> [[M2]]
+; CHECK-NEXT: ret <2 x i8> [[M]]
;
%m = call <2 x i8> @llvm.smax.v2i8(<2 x i8> <i8 7, i8 7>, <2 x i8> %x)
%m2 = call <2 x i8> @llvm.smax.v2i8(<2 x i8> <i8 -127, i8 -127>, <2 x i8> %m)
define i8 @smax_smax_constants_commute2(i8 %x) {
; CHECK-LABEL: @smax_smax_constants_commute2(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smax.i8(i8 [[X:%.*]], i8 0)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smax.i8(i8 [[M]], i8 -1)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smax.i8(i8 %x, i8 0)
%m2 = call i8 @llvm.smax.i8(i8 %m, i8 -1)
define i8 @smax_smax_constants_commute3(i8 %x) {
; CHECK-LABEL: @smax_smax_constants_commute3(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smax.i8(i8 -1, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smax.i8(i8 [[M]], i8 -127)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smax.i8(i8 -1, i8 %x)
%m2 = call i8 @llvm.smax.i8(i8 %m, i8 -127)
define <2 x i8> @smin_smin_constants(<2 x i8> %x) {
; CHECK-LABEL: @smin_smin_constants(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.smin.v2i8(<2 x i8> [[X:%.*]], <2 x i8> <i8 7, i8 7>)
-; CHECK-NEXT: [[M2:%.*]] = call <2 x i8> @llvm.smin.v2i8(<2 x i8> <i8 undef, i8 9>, <2 x i8> [[M]])
-; CHECK-NEXT: ret <2 x i8> [[M2]]
+; CHECK-NEXT: ret <2 x i8> [[M]]
;
%m = call <2 x i8> @llvm.smin.v2i8(<2 x i8> %x, <2 x i8> <i8 7, i8 7>)
%m2 = call <2 x i8> @llvm.smin.v2i8(<2 x i8> <i8 undef, i8 9>, <2 x i8> %m)
define i8 @smin_smin_constants_commute1(i8 %x) {
; CHECK-LABEL: @smin_smin_constants_commute1(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smin.i8(i8 -127, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smin.i8(i8 7, i8 [[M]])
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smin.i8(i8 -127, i8 %x)
%m2 = call i8 @llvm.smin.i8(i8 7, i8 %m)
define i8 @smin_smin_constants_commute2(i8 %x) {
; CHECK-LABEL: @smin_smin_constants_commute2(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smin.i8(i8 [[X:%.*]], i8 -1)
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smin.i8(i8 [[M]], i8 0)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smin.i8(i8 %x, i8 -1)
%m2 = call i8 @llvm.smin.i8(i8 %m, i8 0)
define i8 @smin_smin_constants_commute3(i8 %x) {
; CHECK-LABEL: @smin_smin_constants_commute3(
; CHECK-NEXT: [[M:%.*]] = call i8 @llvm.smin.i8(i8 -127, i8 [[X:%.*]])
-; CHECK-NEXT: [[M2:%.*]] = call i8 @llvm.smin.i8(i8 [[M]], i8 -1)
-; CHECK-NEXT: ret i8 [[M2]]
+; CHECK-NEXT: ret i8 [[M]]
;
%m = call i8 @llvm.smin.i8(i8 -127, i8 %x)
%m2 = call i8 @llvm.smin.i8(i8 %m, i8 -1)
ret i8 %m2
}
+; Negative test - undef in inner constant must not propagate.
+
define <2 x i8> @umin_umin_constants_partial_undef(<2 x i8> %x) {
; CHECK-LABEL: @umin_umin_constants_partial_undef(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.umin.v2i8(<2 x i8> [[X:%.*]], <2 x i8> <i8 7, i8 undef>)
ret <2 x i8> %m2
}
+; Negative test - undef in inner constant must not propagate.
+
define <2 x i8> @smax_smax_constants_partial_undef(<2 x i8> %x) {
; CHECK-LABEL: @smax_smax_constants_partial_undef(
; CHECK-NEXT: [[M:%.*]] = call <2 x i8> @llvm.smax.v2i8(<2 x i8> [[X:%.*]], <2 x i8> <i8 undef, i8 10>)