mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 12:50:30 +00:00
1744eb89b5
Add a verifier check that `DILocalVariable`s of tag
`DW_TAG_arg_variable` always have a non-zero 'arg:' field, and those of
tag `DW_TAG_auto_variable` always have a zero 'arg:' field. These are
the only configurations that are properly understood by the backend.
(Also, fix the bad examples in LangRef and test/Assembler, and fix the
bug in Kaleidoscope Ch8.)
A large number of testcases seem to have bitrotted their way forward
from some ancient version of the debug info hierarchy that didn't have
`arg:` parameters. If you have out-of-tree testcases that start failing
in the verifier and you don't care enough to get the `arg:` right, you
may have some luck just calling:
sed -e 's/, arg: 0/, arg: 1/'
or some such, but I hand-updated the ones in tree.
llvm-svn: 243183
53 lines
3.1 KiB
LLVM
53 lines
3.1 KiB
LLVM
; RUN: opt < %s -mem2reg -S | FileCheck %s
|
|
|
|
define double @testfunc(i32 %i, double %j) nounwind ssp {
|
|
entry:
|
|
%i_addr = alloca i32 ; <i32*> [#uses=2]
|
|
%j_addr = alloca double ; <double*> [#uses=2]
|
|
%retval = alloca double ; <double*> [#uses=2]
|
|
%0 = alloca double ; <double*> [#uses=2]
|
|
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
|
|
call void @llvm.dbg.declare(metadata i32* %i_addr, metadata !0, metadata !DIExpression()), !dbg !8
|
|
; CHECK: call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata ![[IVAR:[0-9]*]], metadata {{.*}})
|
|
; CHECK: call void @llvm.dbg.value(metadata double %j, i64 0, metadata ![[JVAR:[0-9]*]], metadata {{.*}})
|
|
; CHECK: ![[IVAR]] = !DILocalVariable(tag: DW_TAG_arg_variable, name: "i"
|
|
; CHECK: ![[JVAR]] = !DILocalVariable(tag: DW_TAG_arg_variable, name: "j"
|
|
store i32 %i, i32* %i_addr
|
|
call void @llvm.dbg.declare(metadata double* %j_addr, metadata !9, metadata !DIExpression()), !dbg !8
|
|
store double %j, double* %j_addr
|
|
%1 = load i32, i32* %i_addr, align 4, !dbg !10 ; <i32> [#uses=1]
|
|
%2 = add nsw i32 %1, 1, !dbg !10 ; <i32> [#uses=1]
|
|
%3 = sitofp i32 %2 to double, !dbg !10 ; <double> [#uses=1]
|
|
%4 = load double, double* %j_addr, align 8, !dbg !10 ; <double> [#uses=1]
|
|
%5 = fadd double %3, %4, !dbg !10 ; <double> [#uses=1]
|
|
store double %5, double* %0, align 8, !dbg !10
|
|
%6 = load double, double* %0, align 8, !dbg !10 ; <double> [#uses=1]
|
|
store double %6, double* %retval, align 8, !dbg !10
|
|
br label %return, !dbg !10
|
|
|
|
return: ; preds = %entry
|
|
%retval1 = load double, double* %retval, !dbg !10 ; <double> [#uses=1]
|
|
ret double %retval1, !dbg !10
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
|
|
|
|
!llvm.dbg.cu = !{!3}
|
|
!llvm.module.flags = !{!14}
|
|
|
|
!0 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 2, arg: 1, scope: !1, file: !2, type: !7)
|
|
!1 = !DISubprogram(name: "testfunc", linkageName: "testfunc", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 2, file: !12, scope: !2, type: !4, function: double (i32, double)* @testfunc)
|
|
!2 = !DIFile(filename: "testfunc.c", directory: "/tmp")
|
|
!3 = !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !12, enums: !13, retainedTypes: !13)
|
|
!4 = !DISubroutineType(types: !5)
|
|
!5 = !{!6, !7, !6}
|
|
!6 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
|
|
!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!8 = !DILocation(line: 2, scope: !1)
|
|
!9 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 2, arg: 2, scope: !1, file: !2, type: !6)
|
|
!10 = !DILocation(line: 3, scope: !11)
|
|
!11 = distinct !DILexicalBlock(line: 2, column: 0, file: !12, scope: !1)
|
|
!12 = !DIFile(filename: "testfunc.c", directory: "/tmp")
|
|
!13 = !{}
|
|
!14 = !{i32 1, !"Debug Info Version", i32 3}
|