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094572701d
This patch makes the final major change of the RemoveDIs project, changing the default IR output from debug intrinsics to debug records. This is expected to break a large number of tests: every single one that tests for uses or declarations of debug intrinsics and does not explicitly disable writing records. If this patch has broken your downstream tests (or upstream tests on a configuration I wasn't able to run): 1. If you need to immediately unblock a build, pass `--write-experimental-debuginfo=false` to LLVM's option processing for all failing tests (remember to use `-mllvm` for clang/flang to forward arguments to LLVM). 2. For most test failures, the changes are trivial and mechanical, enough that they can be done by script; see the migration guide for a guide on how to do this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates 3. If any tests fail for reasons other than FileCheck check lines that need updating, such as assertion failures, that is most likely a real bug with this patch and should be reported as such. For more information, see the recent PSA: https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
82 lines
3.8 KiB
LLVM
82 lines
3.8 KiB
LLVM
; RUN: opt -S -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 < %s | FileCheck --check-prefix=DBG_VALUE --check-prefix=LOOPVEC_4_1 %s
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; RUN: opt -S -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=3 < %s | FileCheck --check-prefix=DBG_VALUE --check-prefix=LOOPVEC_2_3 %s
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; RUN: opt -S -passes=loop-unroll -unroll-count=5 < %s | FileCheck --check-prefix=DBG_VALUE --check-prefix=LOOPUNROLL_5 %s
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; RUN: opt -S -passes=loop-vectorize,loop-unroll -force-vector-width=4 -force-vector-interleave=4 - -unroll-count=2 < %s | FileCheck --check-prefix=DBG_VALUE --check-prefix=LOOPVEC_UNROLL %s
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; RUN: opt -S -passes=pseudo-probe,loop-unroll -unroll-count=5 < %s | FileCheck --check-prefix=PSEUDO_PROBE %s
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; Test if vectorization/unroll factor is recorded in discriminator.
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;
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; Original source code:
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; 1 int *a;
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; 2 int *b;
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; 3
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; 4 void foo() {
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; 5 for (int i = 0; i < 4096; i++)
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; 6 a[i] += b[i];
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; 7 }
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@a = local_unnamed_addr global ptr null, align 8
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@b = local_unnamed_addr global ptr null, align 8
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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define void @_Z3foov() local_unnamed_addr #0 !dbg !6 {
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%1 = load ptr, ptr @b, align 8, !dbg !8, !tbaa !9
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%2 = load ptr, ptr @a, align 8, !dbg !13, !tbaa !9
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br label %3, !dbg !14
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; <label>:3: ; preds = %3, %0
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%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %3 ]
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%4 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv, !dbg !8
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%5 = load i32, ptr %4, align 4, !dbg !8, !tbaa !15
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%6 = getelementptr inbounds i32, ptr %2, i64 %indvars.iv, !dbg !13
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%7 = load i32, ptr %6, align 4, !dbg !17, !tbaa !15
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%8 = add nsw i32 %7, %5, !dbg !17
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;PSEUDO_PROBE-COUNT-5: call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1), !dbg ![[#PROBE:]]
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;DBG_VALUE: #dbg_declare{{.*}} ![[DBG:[0-9]*]]
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call void @llvm.dbg.declare(metadata i32 %8, metadata !22, metadata !DIExpression()), !dbg !17
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store i32 %8, ptr %6, align 4, !dbg !17, !tbaa !15
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !18
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%exitcond = icmp eq i64 %indvars.iv.next, 4096, !dbg !19
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br i1 %exitcond, label %9, label %3, !dbg !14, !llvm.loop !20
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; <label>:9: ; preds = %3
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ret void, !dbg !21
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}
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;DBG_VALUE: ![[TOP:[0-9]*]] = distinct !DISubprogram(name: "foo"
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;LOOPVEC_4_1: discriminator: 17
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;LOOPVEC_2_3: discriminator: 25
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;LOOPUNROLL_5: discriminator: 21
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; When unrolling after loop vectorize, both vec_body and remainder loop
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; are unrolled.
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;LOOPVEC_UNROLL: discriminator: 9
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;LOOPVEC_UNROLL: discriminator: 385
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;DBG_VALUE: ![[DBG]] = {{.*}}, scope: ![[TOP]]
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; Pseudo probe should not have duplication factor assigned.
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;PSEUDO_PROBE: ![[TOP:[0-9]*]] = distinct !DISubprogram(name: "foo"
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;PSEUDO_PROBE: ![[#PROBE]] = !DILocation(line: 6, column: 13, scope: ![[TOP]])
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, debugInfoForProfiling: true)
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!1 = !DIFile(filename: "a.cc", directory: "/")
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, unit: !0)
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!8 = !DILocation(line: 6, column: 13, scope: !6)
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!9 = !{!10, !10, i64 0}
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!10 = !{!"any pointer", !11, i64 0}
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!11 = !{!"omnipotent char", !12, i64 0}
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!12 = !{!"Simple C++ TBAA"}
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!13 = !DILocation(line: 6, column: 5, scope: !6)
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!14 = !DILocation(line: 5, column: 3, scope: !6)
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!15 = !{!16, !16, i64 0}
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!16 = !{!"int", !11, i64 0}
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!17 = !DILocation(line: 6, column: 10, scope: !6)
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!18 = !DILocation(line: 5, column: 30, scope: !6)
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!19 = !DILocation(line: 5, column: 21, scope: !6)
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!20 = distinct !{!20, !14}
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!21 = !DILocation(line: 7, column: 1, scope: !6)
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!22 = !DILocalVariable(name: "a", arg: 1, scope: !6, file: !1, line: 10)
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