d391e4fe84
Be more consistent in the naming convention for the various RET instructions to specify in terms of bitwidth. Helps prevent future scheduler model mismatches like those that were only addressed in D44687. Differential Revision: https://reviews.llvm.org/D113302
115 lines
4.6 KiB
YAML
115 lines
4.6 KiB
YAML
# RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \
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# RUN: | llvm-dwarfdump -v -name=param - | FileCheck %s
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#
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# Generated with opt -sroa -inline, llc -stop-after=livedebugvalues, with some
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# metadata removed by hand.
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#
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# int glob;
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# __attribute__((always_inline))
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# static void inline_me(int param) {
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# {
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# int local = param;
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# glob = local;
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# }
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# }
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# int fun(int number) {
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# inline_me(number);
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# if (number)
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# return 0;
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# return 1;
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# }
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#
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# The inlined parameter 'param' is available for the entirety of its enclosing
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# scope. We expect to see a single location entry despite the fact that the
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# final instruction in that scope belongs to a dominated scope.
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#
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# Except for 'param', all DILocalVariable metadata has been removed.
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#
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# Ignore first entry (abstract), we want to look at the concrete instance.
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# CHECK: DW_TAG_formal_parameter [
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# CHECK: DW_TAG_formal_parameter [
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# CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)
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# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "param"
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--- |
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target triple = "x86_64-unknown-linux-gnu"
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@glob = dso_local global i32 0, align 4, !dbg !0
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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define dso_local i32 @fun(i32 %number) !dbg !11 {
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entry:
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call void @llvm.dbg.value(metadata i32 %number, metadata !17, metadata !DIExpression()), !dbg !24
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store i32 %number, i32* @glob, align 4, !dbg !27
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%tobool = icmp ne i32 %number, 0, !dbg !32
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br i1 %tobool, label %return, label %if.end, !dbg !34
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if.end: ; preds = %entry
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br label %return, !dbg !35
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return: ; preds = %entry, %if.end
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%retval.0 = phi i32 [ 1, %if.end ], [ 0, %entry ], !dbg !16
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ret i32 %retval.0, !dbg !36
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}
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9}
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!llvm.ident = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
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!3 = !DIFile(filename: "test.c", directory: "/")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 7, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{!"clang version 11.0.0"}
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!11 = distinct !DISubprogram(name: "fun", scope: !3, file: !3, line: 9, type: !12, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)
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!12 = !DISubroutineType(types: !13)
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!13 = !{!6, !6}
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!14 = !{}
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!16 = !DILocation(line: 0, scope: !11)
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!17 = !DILocalVariable(name: "param", arg: 1, scope: !18, file: !3, line: 3, type: !6)
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!18 = distinct !DISubprogram(name: "inline_me", scope: !3, file: !3, line: 3, type: !19, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)
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!19 = !DISubroutineType(types: !20)
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!20 = !{null, !6}
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!21 = !{!17}
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!23 = distinct !DILexicalBlock(scope: !18, file: !3, line: 4, column: 3)
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!24 = !DILocation(line: 0, scope: !18, inlinedAt: !25)
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!25 = distinct !DILocation(line: 10, column: 3, scope: !11)
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!26 = !DILocation(line: 0, scope: !23, inlinedAt: !25)
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!27 = !DILocation(line: 6, column: 10, scope: !23, inlinedAt: !25)
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!32 = !DILocation(line: 11, column: 7, scope: !33)
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!33 = distinct !DILexicalBlock(scope: !11, file: !3, line: 11, column: 7)
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!34 = !DILocation(line: 11, column: 7, scope: !11)
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!35 = !DILocation(line: 13, column: 3, scope: !11)
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!36 = !DILocation(line: 14, column: 1, scope: !11)
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...
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---
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name: fun
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body: |
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bb.0.entry:
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successors: %bb.2(0x50000000), %bb.1(0x30000000)
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liveins: $edi
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DBG_VALUE $edi, $noreg, !17, !DIExpression(), debug-location !24
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MOV32mr $rip, 1, $noreg, @glob, $noreg, renamable $edi, debug-location !27 :: (store (s32) into @glob)
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renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
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TEST32rr killed renamable $edi, renamable $edi, implicit-def $eflags, debug-location !32
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JCC_1 %bb.1, 4, implicit $eflags, debug-location !34
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bb.2.return:
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liveins: $eax
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RET64 $eax, debug-location !36
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bb.1.if.end:
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renamable $eax = MOV32ri 1
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RET64 $eax, debug-location !36
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...
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