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llvm-project/llvm/test/Transforms/Util/libcalls-opt-remarks.ll

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Keep Optimization Remark Yaml in NewPM Summary: The New Pass Manager infrastructure was forgetting to keep around the optimization remark yaml file that the compiler might have been producing. This meant setting the option to '-' for stdout worked, but setting it to a filename didn't give file output (presumably it was deleted because compilation didn't explicitly keep it). This change just ensures that the file is kept if compilation succeeds. So far I have updated one of the optimization remark output tests to add a version with the new pass manager. It is my intention for this patch to also include changes to all tests that use `-opt-remark-output=` but I wanted to get the code patch ready for review while I was making all those changes. Fixes https://bugs.llvm.org/show_bug.cgi?id=33951 Reviewers: anemet, chandlerc Reviewed By: anemet, chandlerc Subscribers: javed.absar, chandlerc, fhahn, llvm-commits Differential Revision: https://reviews.llvm.org/D36906 llvm-svn: 311271
2017-08-20 09:30:45 +08:00
; RUN: opt < %s -instcombine -o /dev/null -pass-remarks-output=%t -S \
; RUN: -pass-remarks=instcombine 2>&1 | FileCheck %s
; RUN: cat %t | FileCheck -check-prefix=YAML %s
; RUN: opt < %s -passes='require<opt-remark-emit>,instcombine' -o /dev/null \
; RUN: -pass-remarks-output=%t -S -pass-remarks=instcombine 2>&1 | FileCheck %s
Migrate SimplifyLibCalls to new OptimizationRemarkEmitter Summary: This changes SimplifyLibCalls to use the new OptimizationRemarkEmitter API. In fact, as SimplifyLibCalls is only ever called via InstCombine, (as far as I can tell) the OptimizationRemarkEmitter is added there, and then passed through to SimplifyLibCalls later. I have avoided changing any remark text. This closes PR33787 Patch by Sam Elliott! Reviewers: anemet, davide Reviewed By: anemet Subscribers: davide, mehdi_amini, eraman, fhahn, llvm-commits Differential Revision: https://reviews.llvm.org/D35608 llvm-svn: 309158
2017-07-27 03:03:18 +08:00
; RUN: cat %t | FileCheck -check-prefix=YAML %s
; CHECK: remark: libcalls-opt-remarks.c:10:10: folded strlen(select) to select of constants{{$}}
; CHECK-NOT: remark:
; YAML: --- !Passed
; YAML-NEXT: Pass: instcombine
; YAML-NEXT: Name: simplify-libcalls
; YAML-NEXT: DebugLoc: { File: libcalls-opt-remarks.c, Line: 10, Column: 10 }
; YAML-NEXT: Function: f1
; YAML-NEXT: Args:
; YAML-NEXT: - String: 'folded strlen(select) to select of constants'
; YAML-NEXT: ...
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
declare i32 @strlen(i8*)
@hello = constant [6 x i8] c"hello\00"
@longer = constant [7 x i8] c"longer\00"
define i32 @f1(i1) !dbg !7 {
%hello = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0, !dbg !10
%longer = getelementptr [7 x i8], [7 x i8]* @longer, i32 0, i32 0, !dbg !12
%2 = select i1 %0, i8* %hello, i8* %longer, !dbg !9
%3 = call i32 @strlen(i8* %2), !dbg !14
ret i32 %3, !dbg !16
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Apple LLVM version 8.1.0 (clang-802.0.42)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
!1 = !DIFile(filename: "libcalls-opt-remarks.c", directory: "/tmp")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"PIC Level", i32 2}
!6 = !{!"Apple LLVM version 8.1.0 (clang-802.0.42)"}
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. In order to set breakpoints on labels and list source code around labels, we need collect debug information for labels, i.e., label name, the function label belong, line number in the file, and the address label located. In order to keep these information in LLVM IR and to allow backend to generate debug information correctly. We create a new kind of metadata for labels, DILabel. The format of DILabel is !DILabel(scope: !1, name: "foo", file: !2, line: 3) We hope to keep debug information as much as possible even the code is optimized. So, we create a new kind of intrinsic for label metadata to avoid the metadata is eliminated with basic block. The intrinsic will keep existing if we keep it from optimized out. The format of the intrinsic is llvm.dbg.label(metadata !1) It has only one argument, that is the DILabel metadata. The intrinsic will follow the label immediately. Backend could get the label metadata through the intrinsic's parameter. We also create DIBuilder API for labels to be used by Frontend. Frontend could use createLabel() to allocate DILabel objects, and use insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR. Differential Revision: https://reviews.llvm.org/D45024 Patch by Hsiangkai Wang. llvm-svn: 331841
2018-05-09 10:40:45 +08:00
!7 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 9, type: !8, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
Migrate SimplifyLibCalls to new OptimizationRemarkEmitter Summary: This changes SimplifyLibCalls to use the new OptimizationRemarkEmitter API. In fact, as SimplifyLibCalls is only ever called via InstCombine, (as far as I can tell) the OptimizationRemarkEmitter is added there, and then passed through to SimplifyLibCalls later. I have avoided changing any remark text. This closes PR33787 Patch by Sam Elliott! Reviewers: anemet, davide Reviewed By: anemet Subscribers: davide, mehdi_amini, eraman, fhahn, llvm-commits Differential Revision: https://reviews.llvm.org/D35608 llvm-svn: 309158
2017-07-27 03:03:18 +08:00
!8 = !DISubroutineType(types: !2)
!9 = !DILocation(line: 10, column: 17, scope: !7)
!10 = !DILocation(line: 10, column: 24, scope: !11)
!11 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)
!12 = !DILocation(line: 10, column: 32, scope: !13)
!13 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 2)
!14 = !DILocation(line: 10, column: 10, scope: !15)
!15 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 3)
!16 = !DILocation(line: 10, column: 3, scope: !15)