derek.holloway
7502bf64a4
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40 lines
1.5 KiB
LLVM
40 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt -S -passes=loop-idiom < %s | FileCheck %s
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; Make sure we don't assert if the BECount is larger than 64 bits.
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define void @test(ptr %p) {
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; CHECK-LABEL: define void @test(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 4 [[P]], i8 0, i64 0, i1 false)
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[IV:%.*]] = phi i128 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[IV_TRUNC:%.*]] = trunc i128 [[IV]] to i64
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; CHECK-NEXT: [[GEP1:%.*]] = getelementptr { i64, i64 }, ptr [[P]], i64 [[IV_TRUNC]]
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; CHECK-NEXT: [[GEP2:%.*]] = getelementptr { i64, i64 }, ptr [[P]], i64 [[IV_TRUNC]], i32 1
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; CHECK-NEXT: [[INC]] = add i128 [[IV]], 1
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; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i128 [[INC]], 0
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; CHECK-NEXT: br i1 [[TOBOOL_NOT]], 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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br label %for.body
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for.body:
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%iv = phi i128 [ 0, %entry ], [ %inc, %for.body ]
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%iv.trunc = trunc i128 %iv to i64
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%gep1 = getelementptr { i64, i64 }, ptr %p, i64 %iv.trunc
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%gep2 = getelementptr { i64, i64 }, ptr %p, i64 %iv.trunc, i32 1
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store i64 0, ptr %gep1
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store i64 0, ptr %gep2
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%inc = add i128 %iv, 1
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%tobool.not = icmp eq i128 %inc, 0
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br i1 %tobool.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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