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Differential D145456

[InstSimplify] Add tests for simplifying `min/max(Intrin(X), X)`; NFC
Needs ReviewPublic

Authored by goldstein.w.n on Mar 6 2023, 6:06 PM.

Details

Reviewers
nikic
spatel
majnemer

Diff Detail

Revision Contents

PathSize
llvm/
test/
Transforms/
InstSimplify/
140 lines

Diff 502882

llvm/test/Transforms/InstSimplify/minmax-intrin.ll

  • This file was added.
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
declare i8 @llvm.umax.i8(i8, i8)
declare i8 @llvm.smax.i8(i8, i8)
declare i8 @llvm.umin.i8(i8, i8)
declare i8 @llvm.smin.i8(i8, i8)
declare i8 @llvm.sadd.sat.i8(i8, i8)
declare i8 @llvm.uadd.sat.i8(i8, i8)
declare i8 @llvm.ssub.sat.i8(i8, i8)
declare i8 @llvm.usub.sat.i8(i8, i8)
declare i8 @llvm.abs.i8(i8, i1)
declare <2 x i8> @llvm.abs.v2i8(<2 x i8>, i1)
declare <2 x i8> @llvm.smax.v2i8(<2 x i8>, <2 x i8>)
declare <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8>, <2 x i8>)
declare <2 x i8> @llvm.usub.sat.v2i8(<2 x i8>, <2 x i8>)
declare <2 x i8> @llvm.umax.v2i8(<2 x i8>, <2 x i8>)
declare <2 x i8> @llvm.umin.v2i8(<2 x i8>, <2 x i8>)
define <2 x i8> @umax_uadd_sat(<2 x i8> %x, <2 x i8> %y) {
; CHECK-LABEL: @umax_uadd_sat(
; CHECK-NEXT: [[XX:%.*]] = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call <2 x i8> @llvm.umax.v2i8(<2 x i8> [[X]], <2 x i8> [[XX]])
; CHECK-NEXT: ret <2 x i8> [[RET]]
;
%xx = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> %x, <2 x i8> %y)
%ret = call <2 x i8> @llvm.umax.v2i8(<2 x i8> %x, <2 x i8> %xx)
ret <2 x i8> %ret
}
define i8 @umin_uadd_sat(i8 %x, i8 %y) {
; CHECK-LABEL: @umin_uadd_sat(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.uadd.sat.i8(i8 [[X:%.*]], i8 [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.umin.i8(i8 [[XX]], i8 [[X]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.uadd.sat.i8(i8 %x, i8 %y)
%ret = call i8 @llvm.umin.i8(i8 %xx, i8 %x)
ret i8 %ret
}
define i8 @umax_usub_sat(i8 %x, i8 %y) {
; CHECK-LABEL: @umax_usub_sat(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.usub.sat.i8(i8 [[X:%.*]], i8 [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.umax.i8(i8 [[X]], i8 [[XX]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.usub.sat.i8(i8 %x, i8 %y)
%ret = call i8 @llvm.umax.i8(i8 %x, i8 %xx)
ret i8 %ret
}
define <2 x i8> @umin_usub_sat(<2 x i8> %x, <2 x i8> %y) {
; CHECK-LABEL: @umin_usub_sat(
; CHECK-NEXT: [[XX:%.*]] = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call <2 x i8> @llvm.umin.v2i8(<2 x i8> [[X]], <2 x i8> [[XX]])
; CHECK-NEXT: ret <2 x i8> [[RET]]
;
%xx = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> %x, <2 x i8> %y)
%ret = call <2 x i8> @llvm.umin.v2i8(<2 x i8> %x, <2 x i8> %xx)
ret <2 x i8> %ret
}
define <2 x i8> @umax_usub_sat_fail_mismatch(<2 x i8> %x, <2 x i8> %y, <2 x i8> %z) {
; CHECK-LABEL: @umax_usub_sat_fail_mismatch(
; CHECK-NEXT: [[XX:%.*]] = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> [[X:%.*]], <2 x i8> [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call <2 x i8> @llvm.umax.v2i8(<2 x i8> [[Z:%.*]], <2 x i8> [[XX]])
; CHECK-NEXT: ret <2 x i8> [[RET]]
;
%xx = call <2 x i8> @llvm.usub.sat.v2i8(<2 x i8> %x, <2 x i8> %y)
%ret = call <2 x i8> @llvm.umax.v2i8(<2 x i8> %z, <2 x i8> %xx)
ret <2 x i8> %ret
}
define i8 @smin_usub_sat_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @smin_usub_sat_fail(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.uadd.sat.i8(i8 [[X:%.*]], i8 [[Y:%.*]])
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.smin.i8(i8 [[X]], i8 [[XX]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.uadd.sat.i8(i8 %x, i8 %y)
%ret = call i8 @llvm.smin.i8(i8 %x, i8 %xx)
ret i8 %ret
}
define i8 @umax_absT(i8 %x) {
; CHECK-LABEL: @umax_absT(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.abs.i8(i8 [[X:%.*]], i1 true)
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.umax.i8(i8 [[XX]], i8 [[X]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.abs.i8(i8 %x, i1 true)
%ret = call i8 @llvm.umax.i8(i8 %xx, i8 %x)
ret i8 %ret
}
define i8 @umax_absT_fail_mismatch(i8 %x, i8 %y) {
; CHECK-LABEL: @umax_absT_fail_mismatch(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.abs.i8(i8 [[X:%.*]], i1 true)
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.umax.i8(i8 [[Y:%.*]], i8 [[XX]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.abs.i8(i8 %x, i1 true)
%ret = call i8 @llvm.umax.i8(i8 %y, i8 %xx)
ret i8 %ret
}
define <2 x i8> @umin_absF(<2 x i8> %x) {
; CHECK-LABEL: @umin_absF(
; CHECK-NEXT: [[XX:%.*]] = call <2 x i8> @llvm.abs.v2i8(<2 x i8> [[X:%.*]], i1 false)
; CHECK-NEXT: [[RET:%.*]] = call <2 x i8> @llvm.umin.v2i8(<2 x i8> [[X]], <2 x i8> [[XX]])
; CHECK-NEXT: ret <2 x i8> [[RET]]
;
%xx = call <2 x i8> @llvm.abs.v2i8(<2 x i8> %x, i1 false)
%ret = call <2 x i8> @llvm.umin.v2i8(<2 x i8> %x, <2 x i8> %xx)
ret <2 x i8> %ret
}
define i8 @smax_absT(i8 %x) {
; CHECK-LABEL: @smax_absT(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.abs.i8(i8 [[X:%.*]], i1 true)
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.smax.i8(i8 [[X]], i8 [[XX]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.abs.i8(i8 %x, i1 true)
%ret = call i8 @llvm.smax.i8(i8 %x, i8 %xx)
ret i8 %ret
}
define i8 @smin_absF(i8 %x) {
; CHECK-LABEL: @smin_absF(
; CHECK-NEXT: [[XX:%.*]] = call i8 @llvm.abs.i8(i8 [[X:%.*]], i1 false)
; CHECK-NEXT: [[RET:%.*]] = call i8 @llvm.smin.i8(i8 [[XX]], i8 [[X]])
; CHECK-NEXT: ret i8 [[RET]]
;
%xx = call i8 @llvm.abs.i8(i8 %x, i1 false)
%ret = call i8 @llvm.smin.i8(i8 %xx, i8 %x)
ret i8 %ret
}