0f111ba790
Introduce a Loop::getLocStr stolen from LoopVectorize's static function getDebugLocString in order to have uniform debug output headers across LoopVectorize, LoopAccessAnalysis, and LoopDistribute. The motivation for this change is to have UpdateTestChecks recognize the headers and automatically generate CHECK lines for debug output, with minimal special-casing.
45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -passes=loop-distribute -enable-loop-distribute \
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; RUN: -debug-only=loop-distribute -disable-output 2>&1 %s | FileCheck %s
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define void @f(ptr noalias %a, ptr noalias %b, ptr noalias %c, ptr noalias %d, i64 %stride) {
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; CHECK-LABEL: 'f'
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; CHECK: LDist: Found a candidate loop: for.body
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; CHECK: Backward dependences:
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; CHECK-NEXT: Backward:
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; CHECK-NEXT: %load.a = load i32, ptr %gep.a, align 4 ->
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; CHECK-NEXT: store i32 %mul.a, ptr %gep.a.plus4, align 4
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; CHECK: Seeded partitions:
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; CHECK: Partition 0
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; CHECK: Partition 1
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; CHECK: Partition 2
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; CHECK: Partition 3
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; CHECK: Distributing loop
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
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%gep.a = getelementptr inbounds i32, ptr %a, i64 %ind
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%load.a = load i32, ptr %gep.a, align 4
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%gep.b = getelementptr inbounds i32, ptr %b, i64 %ind
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%load.b = load i32, ptr %gep.b, align 4
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%mul.a = mul i32 %load.b, %load.a
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%add = add nuw nsw i64 %ind, 1
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%gep.a.plus4 = getelementptr inbounds i32, ptr %a, i64 %add
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store i32 %mul.a, ptr %gep.a.plus4, align 4
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%gep.d = getelementptr inbounds i32, ptr %d, i64 %ind
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%loadD = load i32, ptr %gep.d, align 4
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%mul = mul i64 %ind, %stride
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%gep.strided.a = getelementptr inbounds i32, ptr %a, i64 %mul
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%load.strided.a = load i32, ptr %gep.strided.a, align 4
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%mul.c = mul i32 %loadD, %load.strided.a
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%gep.c = getelementptr inbounds i32, ptr %c, i64 %ind
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store i32 %mul.c, ptr %gep.c, align 4
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%exitcond = icmp eq i64 %add, 20
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br i1 %exitcond, label %exit, label %for.body
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exit: ; preds = %for.body
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ret void
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}
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