diff options
Diffstat (limited to 'sys-devel/llvm/files/llvm-3.1-fix_debug_line_info.patch')
| -rw-r--r-- | sys-devel/llvm/files/llvm-3.1-fix_debug_line_info.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sys-devel/llvm/files/llvm-3.1-fix_debug_line_info.patch b/sys-devel/llvm/files/llvm-3.1-fix_debug_line_info.patch new file mode 100644 index 000000000000..de2d46b618c3 --- /dev/null +++ b/sys-devel/llvm/files/llvm-3.1-fix_debug_line_info.patch @@ -0,0 +1,65 @@ +From 737fdba46f2b2b7d39bc728d15ea2334c44779e0 Mon Sep 17 00:00:00 2001 +From: Ben Longbons <b.r.longbons@gmail.com> +Date: Fri, 29 Jun 2012 12:58:34 -0700 +Subject: [PATCH] Revert "Patch to set is_stmt a little better for prologue + lines in a function." + +This meants that the debugger could find meaningful line information. + +This reverts commit 60b35f408bc3194e7ea4e96367c0b42dc5e7f850. +--- + lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 7 ++----- + test/DebugInfo/X86/ending-run.ll | 6 ++---- + 2 files changed, 4 insertions(+), 9 deletions(-) + +diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +index 3e79a6d..24aedfb 100644 +--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp ++++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +@@ -1093,15 +1093,12 @@ void DwarfDebug::beginInstruction(const MachineInstr *MI) { + if (!MI->isDebugValue()) { + DebugLoc DL = MI->getDebugLoc(); + if (DL != PrevInstLoc && (!DL.isUnknown() || UnknownLocations)) { +- unsigned Flags = 0; ++ unsigned Flags = DWARF2_FLAG_IS_STMT; + PrevInstLoc = DL; + if (DL == PrologEndLoc) { + Flags |= DWARF2_FLAG_PROLOGUE_END; + PrologEndLoc = DebugLoc(); + } +- if (PrologEndLoc.isUnknown()) +- Flags |= DWARF2_FLAG_IS_STMT; +- + if (!DL.isUnknown()) { + const MDNode *Scope = DL.getScope(Asm->MF->getFunction()->getContext()); + recordSourceLine(DL.getLine(), DL.getCol(), Scope, Flags); +@@ -1382,7 +1379,7 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) { + MF->getFunction()->getContext()); + recordSourceLine(FnStartDL.getLine(), FnStartDL.getCol(), + FnStartDL.getScope(MF->getFunction()->getContext()), +- 0); ++ DWARF2_FLAG_IS_STMT); + } + } + +diff --git a/test/DebugInfo/X86/ending-run.ll b/test/DebugInfo/X86/ending-run.ll +index 6935c47..0cd3de1 100644 +--- a/test/DebugInfo/X86/ending-run.ll ++++ b/test/DebugInfo/X86/ending-run.ll +@@ -1,11 +1,9 @@ + ; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj + ; RUN: llvm-dwarfdump %t | FileCheck %s + +-; Check that the line table starts at 7, not 4, but that the first +-; statement isn't until line 8. ++; Check that the line table starts at 7, not 4. + +-; CHECK-NOT: 0x0000000000000000 7 0 1 0 is_stmt +-; CHECK: 0x0000000000000000 7 0 1 0 ++; CHECK: 0x0000000000000000 7 0 1 0 is_stmt + ; CHECK: 0x0000000000000004 8 18 1 0 is_stmt prologue_end + + define i32 @callee(i32 %x) nounwind uwtable ssp { +-- +1.7.10 + |