e4a4122eb6
Remove support for zext and sext constant expressions. All places creating them have been removed beforehand, so this just removes the APIs and uses of these constant expressions in tests. There is some additional cleanup that can be done on top of this, e.g. we can remove the ZExtInst vs ZExtOperator footgun. This is part of https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179.
194 lines
5.4 KiB
LLVM
194 lines
5.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=instcombine -S < %s | FileCheck %s
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declare void @use(i8)
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define i8 @basic(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic(
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; CHECK-NEXT: [[NOTA:%.*]] = sub i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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%a = add i8 %notx, %y
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_com_add(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_com_add(
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; CHECK-NEXT: [[NOTA:%.*]] = sub i8 [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%noty = xor i8 %y, -1
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%a = add i8 %x, %noty
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_use_xor(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_use_xor(
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; CHECK-NEXT: [[NOTX:%.*]] = xor i8 [[X:%.*]], -1
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; CHECK-NEXT: call void @use(i8 [[NOTX]])
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; CHECK-NEXT: [[NOTA:%.*]] = sub i8 [[X]], [[Y:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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call void @use(i8 %notx)
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%a = add i8 %notx, %y
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_use_add(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_use_add(
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; CHECK-NEXT: [[NOTX:%.*]] = xor i8 [[X:%.*]], -1
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; CHECK-NEXT: [[A:%.*]] = add i8 [[NOTX]], [[Y:%.*]]
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; CHECK-NEXT: call void @use(i8 [[A]])
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; CHECK-NEXT: [[NOTA:%.*]] = sub i8 [[X]], [[Y]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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%a = add i8 %notx, %y
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call void @use(i8 %a)
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_use_both(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_use_both(
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; CHECK-NEXT: [[NOTX:%.*]] = xor i8 [[X:%.*]], -1
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; CHECK-NEXT: call void @use(i8 [[NOTX]])
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; CHECK-NEXT: [[A:%.*]] = add i8 [[NOTX]], [[Y:%.*]]
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; CHECK-NEXT: call void @use(i8 [[A]])
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; CHECK-NEXT: [[NOTA:%.*]] = sub i8 [[X]], [[Y]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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call void @use(i8 %notx)
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%a = add i8 %notx, %y
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call void @use(i8 %a)
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_preserve_nsw(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_preserve_nsw(
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; CHECK-NEXT: [[NOTA:%.*]] = sub nsw i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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%a = add nsw i8 %notx, %y
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_preserve_nuw(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_preserve_nuw(
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; CHECK-NEXT: [[NOTA:%.*]] = sub nuw i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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%a = add nuw i8 %notx, %y
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define i8 @basic_preserve_nuw_nsw(i8 %x, i8 %y) {
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; CHECK-LABEL: @basic_preserve_nuw_nsw(
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; CHECK-NEXT: [[NOTA:%.*]] = sub nuw nsw i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i8 [[NOTA]]
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;
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%notx = xor i8 %x, -1
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%a = add nuw nsw i8 %notx, %y
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%nota = xor i8 %a, -1
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ret i8 %nota
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}
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define <4 x i32> @vector_test(<4 x i32> %x, <4 x i32> %y) {
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; CHECK-LABEL: @vector_test(
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; CHECK-NEXT: [[NOTA:%.*]] = sub <4 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[NOTA]]
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;
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%notx = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
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%a = add <4 x i32> %notx, %y
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%nota = xor <4 x i32> %a, <i32 -1, i32 -1, i32 -1, i32 -1>
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ret <4 x i32> %nota
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}
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define <4 x i32> @vector_test_undef(<4 x i32> %x, <4 x i32> %y) {
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; CHECK-LABEL: @vector_test_undef(
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; CHECK-NEXT: [[NOTA:%.*]] = sub <4 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[NOTA]]
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;
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%notx = xor <4 x i32> %x, <i32 -1, i32 undef, i32 undef, i32 -1>
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%a = add <4 x i32> %notx, %y
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%nota = xor <4 x i32> %a, <i32 -1, i32 -1, i32 undef, i32 undef>
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ret <4 x i32> %nota
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}
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define <4 x i32> @vector_test_undef_nsw_nuw(<4 x i32> %x, <4 x i32> %y) {
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; CHECK-LABEL: @vector_test_undef_nsw_nuw(
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; CHECK-NEXT: [[NOTA:%.*]] = sub nuw nsw <4 x i32> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret <4 x i32> [[NOTA]]
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;
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%notx = xor <4 x i32> %x, <i32 -1, i32 undef, i32 undef, i32 -1>
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%a = add nsw nuw <4 x i32> %notx, %y
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%nota = xor <4 x i32> %a, <i32 -1, i32 -1, i32 undef, i32 undef>
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ret <4 x i32> %nota
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}
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define i32 @pr50308(i1 %c1, i32 %v1, i32 %v2, i32 %v3) {
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; CHECK-LABEL: @pr50308(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C1:%.*]], label [[COND_TRUE:%.*]], label [[COND_END:%.*]]
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; CHECK: cond.true:
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; CHECK-NEXT: [[ADD_NOT:%.*]] = sub i32 -2, [[V1:%.*]]
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; CHECK-NEXT: [[ADD1_NEG:%.*]] = xor i32 [[ADD_NOT]], [[V2:%.*]]
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; CHECK-NEXT: br label [[COND_END]]
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; CHECK: cond.end:
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; CHECK-NEXT: [[COND_NEG:%.*]] = phi i32 [ [[ADD1_NEG]], [[COND_TRUE]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[SUB:%.*]] = add i32 [[COND_NEG]], [[V3:%.*]]
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; CHECK-NEXT: ret i32 [[SUB]]
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;
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entry:
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br i1 %c1, label %cond.true, label %cond.end
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cond.true:
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%add = add nsw i32 1, %v1
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%xor = xor i32 %add, %v2
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%add1 = add nsw i32 1, %xor
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br label %cond.end
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cond.end:
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%cond = phi i32 [ %add1, %cond.true ], [ 0, %entry ]
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%sub = sub nsw i32 %v3, %cond
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ret i32 %sub
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}
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@g = extern_weak global i32
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define void @pr50370(i32 %x) {
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; CHECK-LABEL: @pr50370(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i32 poison, ptr undef, align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%xor = xor i32 %x, 1
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%ext = zext i1 icmp eq (ptr @g, ptr null) to i32
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%or = or i32 %ext, 1
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%or4 = or i32 %or, 65536
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%B6 = ashr i32 65536, %or4
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%B15 = srem i32 %B6, %xor
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%B20 = sdiv i32 %or4, 2147483647
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%B22 = add i32 %B15, %B20
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%B14 = srem i32 %B6, %B22
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%B12 = add i32 %B15, %B6
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%B8 = shl i32 %B20, %B14
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%B2 = xor i32 %B12, %B8
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%B3 = or i32 %B12, undef
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%B = xor i32 %B2, %B3
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store i32 %B, ptr undef, align 4
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ret void
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}
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