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
101 lines
4.0 KiB
LLVM
101 lines
4.0 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-macosx10.9.0 %s -stop-after=livedebugvars \
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; RUN: -o - | FileCheck %s
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; Generated from:
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; void g(int *);
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; int f() {
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; int x = 23;
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; g(&x);
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; if (x == 42)
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; ++x;
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; return x; // check that x is not a constant here.
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; }
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; CHECK: ![[X:.*]] = !DILocalVariable(name: "x",
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; CHECK: bb.0.entry:
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; CHECK: DBG_VALUE 23, $noreg, ![[X]],
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; CHECK: DBG_VALUE $rsp, $noreg, ![[X]], !DIExpression(DW_OP_plus_uconst, 4, DW_OP_deref),
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; CHECK: bb.1.if.then:
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; CHECK: DBG_VALUE 43, $noreg, ![[X]],
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; CHECK: bb.2.if.end:
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; CHECK-NOT: DBG_VALUE 23, $noreg, ![[X]],
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; CHECK: RET64 $eax
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.11.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @f() #0 !dbg !4 {
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entry:
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%x = alloca i32, align 4
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%0 = bitcast i32* %x to i8*, !dbg !14
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call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !14
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tail call void @llvm.dbg.value(metadata i32 23, metadata !9, metadata !15), !dbg !16
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store i32 23, i32* %x, align 4, !dbg !16, !tbaa !17
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tail call void @llvm.dbg.value(metadata i32* %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !16
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call void @g(i32* nonnull %x) #4, !dbg !21
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call void @llvm.dbg.value(metadata i32* %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !16
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%1 = load i32, i32* %x, align 4, !dbg !22, !tbaa !17
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%cmp = icmp eq i32 %1, 42, !dbg !24
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br i1 %cmp, label %if.then, label %if.end, !dbg !25
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if.then: ; preds = %entry
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call void @llvm.dbg.value(metadata i32 43, metadata !9, metadata !15), !dbg !16
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store i32 43, i32* %x, align 4, !dbg !26, !tbaa !17
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br label %if.end, !dbg !26
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if.end: ; preds = %if.then, %entry
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%2 = phi i32 [ 43, %if.then ], [ %1, %entry ], !dbg !27
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call void @llvm.dbg.value(metadata i32* %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !16
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call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !28
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ret i32 %2, !dbg !29
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start(i64, i8* nocapture) #1
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declare void @g(i32*) #4
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end(i64, i8* nocapture) #1
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) #3
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attributes #0 = { nounwind ssp uwtable }
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attributes #1 = { argmemonly nounwind }
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attributes #3 = { nounwind readnone }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 255890) (llvm/trunk 255919)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "constant.c", directory: "")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0, retainedNodes: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 3, type: !7)
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!10 = !{i32 2, !"Dwarf Version", i32 2}
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!11 = !{i32 2, !"Debug Info Version", i32 3}
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!12 = !{i32 1, !"PIC Level", i32 2}
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!13 = !{!"clang version 3.8.0 (trunk 255890) (llvm/trunk 255919)"}
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!14 = !DILocation(line: 3, column: 3, scope: !4)
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!15 = !DIExpression()
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!16 = !DILocation(line: 3, column: 7, scope: !4)
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!17 = !{!18, !18, i64 0}
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!18 = !{!"int", !19, i64 0}
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!19 = !{!"omnipotent char", !20, i64 0}
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!20 = !{!"Simple C/C++ TBAA"}
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!21 = !DILocation(line: 4, column: 3, scope: !4)
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!22 = !DILocation(line: 5, column: 7, scope: !23)
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!23 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 7)
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!24 = !DILocation(line: 5, column: 9, scope: !23)
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!25 = !DILocation(line: 5, column: 7, scope: !4)
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!26 = !DILocation(line: 6, column: 5, scope: !23)
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!27 = !DILocation(line: 7, column: 10, scope: !4)
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!28 = !DILocation(line: 8, column: 1, scope: !4)
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!29 = !DILocation(line: 7, column: 3, scope: !4)
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