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