72763521c3
To avoid an assertion failure when an AssertingVH is removed, as reported in: https://github.com/llvm/llvm-project/pull/82362#issuecomment-1960067147 Also remove an unnecessary use of SCEVExpanderCleaner.
44 lines
1.8 KiB
LLVM
44 lines
1.8 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=loop-reduce -mtriple=riscv64-unknown-linux-gnu < %s | FileCheck %s
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define void @test(ptr %p, i8 %arg, i32 %start) {
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; CHECK-LABEL: define void @test(
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; CHECK-SAME: ptr [[P:%.*]], i8 [[ARG:%.*]], i32 [[START:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CONV:%.*]] = zext i8 [[ARG]] to i32
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; CHECK-NEXT: [[SHR:%.*]] = lshr i32 [[CONV]], 1
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; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[START]], [[SHR]]
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; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[TMP0]], 1
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[ADD810:%.*]] = phi i32 [ [[START]], [[ENTRY:%.*]] ], [ [[ADD:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[IDXPROM2:%.*]] = zext i32 [[ADD810]] to i64
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; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr i8, ptr [[P]], i64 [[IDXPROM2]]
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; CHECK-NEXT: [[V:%.*]] = load i8, ptr [[ARRAYIDX3]], align 1
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; CHECK-NEXT: [[ADD]] = add i32 [[ADD810]], 1
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; CHECK-NEXT: [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND:%.*]] = icmp eq i32 [[ADD]], [[TMP1]]
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; CHECK-NEXT: br i1 [[LSR_FOLD_TERM_COND_REPLACED_TERM_COND]], label [[EXIT:%.*]], label [[FOR_BODY]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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entry:
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%conv = zext i8 %arg to i32
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%shr = lshr i32 %conv, 1
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%wide.trip.count = zext nneg i32 %shr to i64
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br label %for.body
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%add810 = phi i32 [ %start, %entry ], [ %add, %for.body ]
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%idxprom2 = zext i32 %add810 to i64
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%arrayidx3 = getelementptr i8, ptr %p, i64 %idxprom2
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%v = load i8, ptr %arrayidx3, align 1
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%add = add i32 %add810, 1
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%indvars.iv.next = add i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv, %wide.trip.count
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br i1 %exitcond.not, label %exit, label %for.body
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exit:
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ret void
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}
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