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llvm-project/llvm/test/DebugInfo/X86/isel-cse-line.ll

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DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
; RUN: llc -filetype=asm -fast-isel=false -O0 < %s | FileCheck %s
;
; Generated by:
; clang -emit-llvm -S -g test.cpp
; typedef double fp_t;
; typedef unsigned long int_t;
;
; int_t glb_start = 17;
; int_t glb_end = 42;
;
; int main()
; {
; int_t start = glb_start;
; int_t end = glb_end;
;
; fp_t dbl_start = (fp_t) start;
; fp_t dbl_end = (fp_t) end;
;
; return 0;
; }
; SelectionDAG performs CSE on constant pool loads. Make sure line numbers
; from such nodes are not propagated. Doing so results in oscillating line numbers.
; CHECK: .loc 1 12
; CHECK: .loc 1 13
; CHECK-NOT: .loc 1 12
; ModuleID = 't.cpp'
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
source_filename = "test/DebugInfo/X86/isel-cse-line.ll"
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
@glb_start = global i64 17, align 8, !dbg !0
@glb_end = global i64 42, align 8, !dbg !9
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
define i32 @main() !dbg !16 {
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
%1 = alloca i32, align 4
%2 = alloca i64, align 8
%3 = alloca i64, align 8
%4 = alloca double, align 8
%5 = alloca double, align 8
store i32 0, i32* %1, align 4
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
call void @llvm.dbg.declare(metadata i64* %2, metadata !20, metadata !21), !dbg !22
%6 = load i64, i64* @glb_start, align 8, !dbg !23
store i64 %6, i64* %2, align 8, !dbg !22
call void @llvm.dbg.declare(metadata i64* %3, metadata !24, metadata !21), !dbg !25
%7 = load i64, i64* @glb_end, align 8, !dbg !26
store i64 %7, i64* %3, align 8, !dbg !25
call void @llvm.dbg.declare(metadata double* %4, metadata !27, metadata !21), !dbg !28
%8 = load i64, i64* %2, align 8, !dbg !29
%9 = uitofp i64 %8 to double, !dbg !29
store double %9, double* %4, align 8, !dbg !28
call void @llvm.dbg.declare(metadata double* %5, metadata !30, metadata !21), !dbg !31
%10 = load i64, i64* %3, align 8, !dbg !32
%11 = uitofp i64 %10 to double, !dbg !32
store double %11, double* %5, align 8, !dbg !31
ret i32 0, !dbg !33
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
}
; Function Attrs: nounwind readnone
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
attributes #0 = { nounwind readnone }
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!13, !14}
!llvm.ident = !{!15}
Canonicalize the representation of empty an expression in DIGlobalVariableExpression This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
2017-08-31 02:06:51 +08:00
!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
!1 = !DIGlobalVariable(name: "glb_start", scope: !2, file: !3, line: 4, type: !11, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.9.0 (trunk 268246)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !8)
!3 = !DIFile(filename: "/home/wpieb/test/D12094.cpp", directory: "/home/wpieb/build/llvm/trunk/llvm-RelWithDebInfo")
!4 = !{}
!5 = !{!6}
!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "fp_t", file: !3, line: 1, baseType: !7)
!7 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
!8 = !{!0, !9}
Canonicalize the representation of empty an expression in DIGlobalVariableExpression This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
2017-08-31 02:06:51 +08:00
!9 = distinct !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
!10 = !DIGlobalVariable(name: "glb_end", scope: !2, file: !3, line: 5, type: !11, isLocal: false, isDefinition: true)
!11 = !DIDerivedType(tag: DW_TAG_typedef, name: "int_t", file: !3, line: 2, baseType: !12)
!12 = !DIBasicType(name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
!13 = !{i32 2, !"Dwarf Version", i32 4}
!14 = !{i32 2, !"Debug Info Version", i32 3}
!15 = !{!"clang version 3.9.0 (trunk 268246)"}
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. In order to set breakpoints on labels and list source code around labels, we need collect debug information for labels, i.e., label name, the function label belong, line number in the file, and the address label located. In order to keep these information in LLVM IR and to allow backend to generate debug information correctly. We create a new kind of metadata for labels, DILabel. The format of DILabel is !DILabel(scope: !1, name: "foo", file: !2, line: 3) We hope to keep debug information as much as possible even the code is optimized. So, we create a new kind of intrinsic for label metadata to avoid the metadata is eliminated with basic block. The intrinsic will keep existing if we keep it from optimized out. The format of the intrinsic is llvm.dbg.label(metadata !1) It has only one argument, that is the DILabel metadata. The intrinsic will follow the label immediately. Backend could get the label metadata through the intrinsic's parameter. We also create DIBuilder API for labels to be used by Frontend. Frontend could use createLabel() to allocate DILabel objects, and use insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR. Differential Revision: https://reviews.llvm.org/D45024 Patch by Hsiangkai Wang. llvm-svn: 331841
2018-05-09 10:40:45 +08:00
!16 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !17, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
Renumber testcase metadata nodes after r290153. This patch renumbers the metadata nodes in debug info testcases after https://reviews.llvm.org/D26769. This is a separate patch because it causes so much churn. This was implemented with a python script that pipes the testcases through llvm-as - | llvm-dis - and then goes through the original and new output side-by side to insert all comments at a close-enough location. Differential Revision: https://reviews.llvm.org/D27765 llvm-svn: 290292
2016-12-22 08:45:21 +08:00
!17 = !DISubroutineType(types: !18)
!18 = !{!19}
!19 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!20 = !DILocalVariable(name: "start", scope: !16, file: !3, line: 9, type: !11)
!21 = !DIExpression()
!22 = !DILocation(line: 9, column: 9, scope: !16)
!23 = !DILocation(line: 9, column: 17, scope: !16)
!24 = !DILocalVariable(name: "end", scope: !16, file: !3, line: 10, type: !11)
!25 = !DILocation(line: 10, column: 9, scope: !16)
!26 = !DILocation(line: 10, column: 17, scope: !16)
!27 = !DILocalVariable(name: "dbl_start", scope: !16, file: !3, line: 12, type: !6)
!28 = !DILocation(line: 12, column: 8, scope: !16)
!29 = !DILocation(line: 12, column: 27, scope: !16)
!30 = !DILocalVariable(name: "dbl_end", scope: !16, file: !3, line: 13, type: !6)
!31 = !DILocation(line: 13, column: 8, scope: !16)
!32 = !DILocation(line: 13, column: 27, scope: !16)
!33 = !DILocation(line: 15, column: 3, scope: !16)
DebugInfo: Avoid propagating incorrect debug locations in SelectionDAG via CSE. Summary: When SelectionDAG performs CSE it is possible that the context's source location is different from that of the selected node. This can lead to incorrect line number records. We update the debug location to the one that occurs earlier in the instruction sequence. This fixes PR21006. Reviewers: echristo, sdmitrouk Subscribers: jevinskie, asl, llvm-commits Differential Revision: http://reviews.llvm.org/D12094 llvm-svn: 268323
2016-05-03 06:50:51 +08:00