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| author | Eric Christopher <echristo@gmail.com> | 2012-10-04 20:46:14 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2012-10-04 20:46:14 +0000 |
| commit | 0313ced016f3777e806ca2e42a746d3162174c47 (patch) | |
| tree | ad50cded88cbbad21c2cb950ebec00674e12234f /lib/CodeGen | |
| parent | 726b88fb6a3242bbbe6c6c486a18dfa6f6ed11a6 (diff) | |
| download | external_llvm-0313ced016f3777e806ca2e42a746d3162174c47.zip external_llvm-0313ced016f3777e806ca2e42a746d3162174c47.tar.gz external_llvm-0313ced016f3777e806ca2e42a746d3162174c47.tar.bz2 | |
Update this a bit more to represent how the prologue should work:
a) frame setup instructions define the prologue
b) we shouldn't change our location mid-stream
Add a test to make sure that the stack adjustment stays within
the prologue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165250 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index f79854d..fd2fd24 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1355,9 +1355,10 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) { if (!MI->isLabel()) AtBlockEntry = false; - // First known non DBG_VALUE location marks beginning of function - // body. - if (PrologEndLoc.isUnknown() && !MI->getDebugLoc().isUnknown()) + // First known non-DBG_VALUE and non-frame setup location marks + // the beginning of the function body. + if (!MI->getFlag(MachineInstr::FrameSetup) && + (PrologEndLoc.isUnknown() && !MI->getDebugLoc().isUnknown())) PrologEndLoc = MI->getDebugLoc(); // Check if the instruction clobbers any registers with debug vars. |