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.
35 lines
1.2 KiB
LLVM
35 lines
1.2 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -passes='print<access-info>' -debug-only=loop-accesses \
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; RUN: -disable-output -S %s 2>&1 | FileCheck %s
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define void @negative_step(ptr nocapture %A) {
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; CHECK-LABEL: LAA: Checking a loop in 'negative_step' from negative_step.c:5:2
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entry:
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%A.plus.1 = getelementptr i32, ptr %A, i64 1
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br label %loop
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loop:
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%iv = phi i64 [ 1022, %entry ], [ %iv.next, %loop ]
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%gep.A = getelementptr inbounds i32, ptr %A, i64 %iv
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%l = load i32, ptr %gep.A, align 4
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%add = add nsw i32 %l, 1
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%gep.A.plus.1 = getelementptr i32, ptr %A.plus.1, i64 %iv
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store i32 %add, ptr %gep.A.plus.1, align 4
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%iv.next = add nsw i64 %iv, -1
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%cmp.not = icmp eq i64 %iv, 0
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br i1 %cmp.not, label %exit, label %loop, !dbg !2
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exit:
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ret void
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}
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!llvm.module.flags = !{!5, !6, !7}
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!0 = !DIFile(filename: "negative_step.c", directory: "/")
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!1 = distinct !DISubprogram(name: "negative_step", scope: !0, file: !0, unit: !4)
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!2 = !DILocation(line: 5, column: 2, scope: !1)
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!4 = distinct !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang")
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!5 = !{i32 1, !"Debug Info Version", i32 3}
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!6 = !{i32 2, !"Dwarf Version", i32 2}
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!7 = !{i32 1, !"PIC Level", i32 2}
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