mirror of
https://github.com/RPCS3/llvm.git
synced 2026-07-20 19:04:10 -04:00
Matt Arsenault
5b56cc85b0
This allows targets to make more decisions about reserved registers after isel. For example, now it should be certain there are calls or stack objects in the frame or not, which could have been introduced by legalization. Patch by Matthias Braun git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363757 91177308-0d34-0410-b5e6-96231b3b80d8
72 lines
3.5 KiB
LLVM
72 lines
3.5 KiB
LLVM
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39452.
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; RUN: llc -stop-before=finalize-isel -pre-RA-sched=linearize -verify-machineinstrs=0 < %s | FileCheck %s
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source_filename = "linear-dbg-value.ll"
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; Function Attrs: nounwind readonly uwtable
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define i32 @foo(i32* nocapture readonly %a, i32 %N) local_unnamed_addr #0 !dbg !6 {
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entry:
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%cmp6 = icmp sgt i32 %N, 0, !dbg !11
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br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup, !dbg !15
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for.body.preheader: ; preds = %entry
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%wide.trip.count = zext i32 %N to i64
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br label %for.body, !dbg !17
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for.cond.cleanup.loopexit: ; preds = %for.body
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br label %for.cond.cleanup, !dbg !19
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%x.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.cond.cleanup.loopexit ]
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ret i32 %x.0.lcssa, !dbg !19
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for.body: ; preds = %for.body, %for.body.preheader
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; CHECK: ![[X:[0-9]+]] = !DILocalVariable(name: "x",
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; CHECK-LABEL: bb.3.for.body:
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; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression()
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; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression()
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%x.07 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv, !dbg !17
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%0 = load i32, i32* %arrayidx, align 4, !dbg !17
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%add = add nsw i32 %0, %x.07, !dbg !17
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call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !21
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call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20
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%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !11
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !15
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind readonly uwtable }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!llvm.ident = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.1 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "foo.c", directory: "/tmp")
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!2 = !{}
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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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!5 = !{!"clang version 4.0.1 "}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "x", scope: !6, file: !1, line: 3, type: !10)
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocation(line: 4, scope: !12)
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!12 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 1)
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!13 = distinct !DILexicalBlock(scope: !14, file: !1, line: 4, column: 3)
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!14 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 3)
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!15 = !DILocation(line: 4, scope: !16)
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!16 = !DILexicalBlockFile(scope: !14, file: !1, discriminator: 1)
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!17 = !DILocation(line: 5, scope: !18)
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!18 = distinct !DILexicalBlock(scope: !13, file: !1, line: 4, column: 31)
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!19 = !DILocation(line: 7, scope: !6)
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!20 = !DILocation(line: 3, scope: !6)
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!21 = !DILocation(line: 4, scope: !22)
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!22 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 3)
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