derek.holloway
7502bf64a4
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120 lines
3.8 KiB
LLVM
120 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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define ptr @mul4(ptr %p, i64 %x) {
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; CHECK-LABEL: define ptr @mul4(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_IDX:%.*]] = shl i64 [[X]], 4
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[GEP_IDX]]
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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entry:
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%mul = mul i64 %x, 4
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%gep = getelementptr inbounds i32, ptr %p, i64 %mul
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ret ptr %gep
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}
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define ptr @mul4_nuw(ptr %p, i64 %x) {
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; CHECK-LABEL: define ptr @mul4_nuw(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_IDX:%.*]] = shl i64 [[X]], 4
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr nuw i8, ptr [[P]], i64 [[GEP_IDX]]
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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entry:
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%mul = mul i64 %x, 4
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%gep = getelementptr nuw i32, ptr %p, i64 %mul
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ret ptr %gep
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}
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define ptr @mul5(ptr %p, i64 %x) {
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; CHECK-LABEL: define ptr @mul5(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_IDX:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[GEP_IDX]]
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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entry:
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%mul = mul i64 %x, 5
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%gep = getelementptr inbounds i32, ptr %p, i64 %mul
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ret ptr %gep
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}
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define ptr @noinbounds(ptr %p, i64 %x) {
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; CHECK-LABEL: define ptr @noinbounds(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[GEP_IDX:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[P]], i64 [[GEP_IDX]]
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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entry:
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%mul = mul i64 %x, 5
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%gep = getelementptr i32, ptr %p, i64 %mul
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ret ptr %gep
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}
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define ptr @usemul(ptr %p, i64 %x) {
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; CHECK-LABEL: define ptr @usemul(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[MUL:%.*]] = mul i64 [[X]], 5
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [4 x i8], ptr [[P]], i64 [[MUL]]
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; CHECK-NEXT: call void @use(i64 [[MUL]])
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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entry:
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%mul = mul i64 %x, 5
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%gep = getelementptr inbounds i32, ptr %p, i64 %mul
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call void @use(i64 %mul)
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ret ptr %gep
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}
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define void @multiple(ptr %p, i64 %x) {
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; CHECK-LABEL: define void @multiple(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[MUL21:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP3:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[MUL21]]
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; CHECK-NEXT: [[MUL20:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[MUL20]]
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; CHECK-NEXT: call void @use2(ptr [[GEP3]], ptr [[GEP2]])
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; CHECK-NEXT: ret void
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;
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entry:
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%mul5 = mul i64 %x, 5
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%gep1 = getelementptr inbounds i32, ptr %p, i64 %mul5
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%mul20 = mul i64 %x, 20
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%gep2 = getelementptr inbounds i8, ptr %p, i64 %mul20
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call void @use2(ptr %gep1, ptr %gep2)
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ret void
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}
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define void @multiplestore(ptr %p, i64 %x) {
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; CHECK-LABEL: define void @multiplestore(
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; CHECK-SAME: ptr [[P:%.*]], i64 [[X:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[MUL20:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[MUL20]]
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; CHECK-NEXT: [[MUL21:%.*]] = mul i64 [[X]], 20
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; CHECK-NEXT: [[GEP3:%.*]] = getelementptr inbounds i8, ptr [[P]], i64 [[MUL21]]
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; CHECK-NEXT: store i32 0, ptr [[GEP2]], align 4
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; CHECK-NEXT: store i32 1, ptr [[GEP3]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%mul5 = mul i64 %x, 5
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%gep1 = getelementptr inbounds i32, ptr %p, i64 %mul5
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%mul20 = mul i64 %x, 20
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%gep2 = getelementptr inbounds i8, ptr %p, i64 %mul20
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store i32 0, ptr %gep1
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store i32 1, ptr %gep2
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ret void
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}
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declare void @use(i64)
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declare void @use2(ptr, ptr)
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