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-rw-r--r--llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp5
-rw-r--r--llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h8
-rw-r--r--llvm/test/DebugInfo/NVPTX/debug-loc-offset.ll64
3 files changed, 24 insertions, 53 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index c7688141803..a33bda34630 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -317,6 +317,8 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
else
UseInlineStrings = DwarfInlinedStrings == Enable;
+ UseLocSection = !TT.isNVPTX();
+
HasAppleExtensionAttributes = tuneForLLDB();
// Handle split DWARF.
@@ -1196,6 +1198,9 @@ void DwarfDebug::collectVariableInfo(DwarfCompileUnit &TheCU,
RegVar->initializeDbgValue(MInsn);
continue;
}
+ // Do not emit location lists if .debug_loc secton is disabled.
+ if (!useLocSection())
+ continue;
// Handle multiple DBG_VALUE instructions describing one variable.
DebugLocStream::ListBuilder List(DebugLocs, TheCU, *Asm, *RegVar, *MInsn);
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index f01d68028eb..54f0e5b6a79 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -276,6 +276,9 @@ class DwarfDebug : public DebugHandlerBase {
/// temp symbols inside DWARF sections.
bool UseSectionsAsReferences = false;
+ ///Allow emission of the .debug_loc section.
+ bool UseLocSection = true;
+
/// DWARF5 Experimental Options
/// @{
AccelTableKind TheAccelTableKind;
@@ -526,7 +529,7 @@ public:
/// Returns whether to use inline strings.
bool useInlineStrings() const { return UseInlineStrings; }
- /// Returns whether GNU oub sections should be emitted.
+ /// Returns whether GNU pub sections should be emitted.
bool usePubSections() const { return UsePubSections; }
/// Returns whether ranges section should be emitted.
@@ -537,6 +540,9 @@ public:
return UseSectionsAsReferences;
}
+ /// Returns whether .debug_loc section should be emitted.
+ bool useLocSection() const { return UseLocSection; }
+
// Experimental DWARF5 features.
/// Returns what kind (if any) of accelerator tables to emit.
diff --git a/llvm/test/DebugInfo/NVPTX/debug-loc-offset.ll b/llvm/test/DebugInfo/NVPTX/debug-loc-offset.ll
index 2368e1dee9f..7cf4ab3c7b6 100644
--- a/llvm/test/DebugInfo/NVPTX/debug-loc-offset.ll
+++ b/llvm/test/DebugInfo/NVPTX/debug-loc-offset.ll
@@ -127,40 +127,6 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
!33 = !DILocation(line: 11, scope: !32)
!34 = !DILocation(line: 12, scope: !14)
-
-; CHECK: // .section .debug_loc
-; CHECK: // {
-; CHECK: Ldebug_loc0:
-; CHECK: // .b64 Lfunc_begin0-Lfunc_begin0
-; CHECK: // .b64 Ltmp0-Lfunc_begin0
-; CHECK: // .b8 2 // Loc expr size
-; CHECK: // .b8 0
-; CHECK: // .b8 17 // DW_OP_consts
-; CHECK: // .b8 0 // 0
-; CHECK: // .b64 Ltmp0-Lfunc_begin0
-; CHECK: // .b64 Lfunc_end0-Lfunc_begin0
-; CHECK: // .b8 2 // Loc expr size
-; CHECK: // .b8 0
-; CHECK: // .b8 17 // DW_OP_consts
-; CHECK: // .b8 1 // 1
-; CHECK: // .b64 0
-; CHECK: // .b64 0
-; CHECK: Ldebug_loc1:
-; CHECK: // .b64 Ltmp2-Lfunc_begin1
-; CHECK: // .b64 Ltmp2-Lfunc_begin1
-; CHECK: // .b8 2 // Loc expr size
-; CHECK: // .b8 0
-; CHECK: // .b8 17 // DW_OP_consts
-; CHECK: // .b8 2 // 2
-; CHECK: // .b64 Ltmp2-Lfunc_begin1
-; CHECK: // .b64 Lfunc_end1-Lfunc_begin1
-; CHECK: // .b8 2 // Loc expr size
-; CHECK: // .b8 0
-; CHECK: // .b8 17 // DW_OP_consts
-; CHECK: // .b8 3 // 3
-; CHECK: // .b64 0
-; CHECK: // .b64 0
-; CHECK: // }
; CHECK: // .section .debug_abbrev
; CHECK: // {
; CHECK: // .b8 1 // Abbreviation Code
@@ -214,8 +180,6 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 4 // Abbreviation Code
; CHECK: // .b8 52 // DW_TAG_variable
; CHECK: // .b8 0 // DW_CHILDREN_no
-; CHECK: // .b8 2 // DW_AT_location
-; CHECK: // .b8 6 // DW_FORM_data4
; CHECK: // .b8 3 // DW_AT_name
; CHECK: // .b8 8 // DW_FORM_string
; CHECK: // .b8 58 // DW_AT_decl_file
@@ -251,8 +215,6 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 6 // Abbreviation Code
; CHECK: // .b8 5 // DW_TAG_formal_parameter
; CHECK: // .b8 0 // DW_CHILDREN_no
-; CHECK: // .b8 2 // DW_AT_location
-; CHECK: // .b8 6 // DW_FORM_data4
; CHECK: // .b8 3 // DW_AT_name
; CHECK: // .b8 8 // DW_FORM_string
; CHECK: // .b8 58 // DW_AT_decl_file
@@ -278,12 +240,12 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // }
; CHECK: // .section .debug_info
; CHECK: // {
-; CHECK: // .b32 152 // Length of Unit
+; CHECK: // .b32 148 // Length of Unit
; CHECK: // .b8 2 // DWARF version number
; CHECK: // .b8 0
; CHECK: // .b32 .debug_abbrev // Offset Into Abbrev. Section
; CHECK: // .b8 8 // Address Size (in bytes)
-; CHECK: // .b8 1 // Abbrev [1] 0xb:0x91 DW_TAG_compile_unit
+; CHECK: // .b8 1 // Abbrev [1] 0xb:0x8d DW_TAG_compile_unit
; CHECK: // .b8 99 // DW_AT_producer
; CHECK: // .b8 108
; CHECK: // .b8 97
@@ -359,7 +321,7 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 65 // DW_AT_name
; CHECK: // .b8 0
; CHECK: // .b8 1 // DW_AT_declaration
-; CHECK: // .b8 3 // Abbrev [3] 0x68:0x33 DW_TAG_subprogram
+; CHECK: // .b8 3 // Abbrev [3] 0x68:0x2f DW_TAG_subprogram
; CHECK: // .b64 Lfunc_begin1 // DW_AT_low_pc
; CHECK: // .b64 Lfunc_end1 // DW_AT_high_pc
; CHECK: // .b8 95 // DW_AT_MIPS_linkage_name
@@ -378,21 +340,20 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 2 // DW_AT_decl_file
; CHECK: // .b8 6 // DW_AT_decl_line
; CHECK: // .b8 1 // DW_AT_external
-; CHECK: // .b8 4 // Abbrev [4] 0x89:0x11 DW_TAG_variable
-; CHECK: // .b32 Ldebug_loc1 // DW_AT_location
+; CHECK: // .b8 4 // Abbrev [4] 0x89:0xd DW_TAG_variable
; CHECK: // .b8 122 // DW_AT_name
; CHECK: // .b8 0
; CHECK: // .b8 2 // DW_AT_decl_file
; CHECK: // .b8 7 // DW_AT_decl_line
-; CHECK: // .b64 .debug_info+306 // DW_AT_type
+; CHECK: // .b64 .debug_info+298 // DW_AT_type
; CHECK: // .b8 0 // End Of Children Mark
; CHECK: // .b8 0 // End Of Children Mark
-; CHECK: // .b32 154 // Length of Unit
+; CHECK: // .b32 150 // Length of Unit
; CHECK: // .b8 2 // DWARF version number
; CHECK: // .b8 0
; CHECK: // .b32 .debug_abbrev // Offset Into Abbrev. Section
; CHECK: // .b8 8 // Address Size (in bytes)
-; CHECK: // .b8 1 // Abbrev [1] 0xb:0x93 DW_TAG_compile_unit
+; CHECK: // .b8 1 // Abbrev [1] 0xb:0x8f DW_TAG_compile_unit
; CHECK: // .b8 99 // DW_AT_producer
; CHECK: // .b8 108
; CHECK: // .b8 97
@@ -464,7 +425,7 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 0
; CHECK: // .b64 Lfunc_begin0 // DW_AT_low_pc
; CHECK: // .b64 Lfunc_end0 // DW_AT_high_pc
-; CHECK: // .b8 5 // Abbrev [5] 0x64:0x32 DW_TAG_subprogram
+; CHECK: // .b8 5 // Abbrev [5] 0x64:0x2e DW_TAG_subprogram
; CHECK: // .b64 Lfunc_begin0 // DW_AT_low_pc
; CHECK: // .b64 Lfunc_end0 // DW_AT_high_pc
; CHECK: // .b8 95 // DW_AT_MIPS_linkage_name
@@ -481,17 +442,16 @@ attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
; CHECK: // .b8 0
; CHECK: // .b8 1 // DW_AT_decl_file
; CHECK: // .b8 1 // DW_AT_decl_line
-; CHECK: // .b32 150 // DW_AT_type
+; CHECK: // .b32 146 // DW_AT_type
; CHECK: // .b8 1 // DW_AT_external
-; CHECK: // .b8 6 // Abbrev [6] 0x88:0xd DW_TAG_formal_parameter
-; CHECK: // .b32 Ldebug_loc0 // DW_AT_location
+; CHECK: // .b8 6 // Abbrev [6] 0x88:0x9 DW_TAG_formal_parameter
; CHECK: // .b8 98 // DW_AT_name
; CHECK: // .b8 0
; CHECK: // .b8 1 // DW_AT_decl_file
; CHECK: // .b8 1 // DW_AT_decl_line
-; CHECK: // .b32 150 // DW_AT_type
+; CHECK: // .b32 146 // DW_AT_type
; CHECK: // .b8 0 // End Of Children Mark
-; CHECK: // .b8 7 // Abbrev [7] 0x96:0x7 DW_TAG_base_type
+; CHECK: // .b8 7 // Abbrev [7] 0x92:0x7 DW_TAG_base_type
; CHECK: // .b8 105 // DW_AT_name
; CHECK: // .b8 110
; CHECK: // .b8 116
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