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authorEvan Cheng <evan.cheng@apple.com>2008-02-01 09:10:45 +0000
committerEvan Cheng <evan.cheng@apple.com>2008-02-01 09:10:45 +0000
commita53c40a59981b6bae7e734fa9e42bc345c0457df (patch)
treef11d5f22e3bcdf9bd067d3e90ba002e1e2557c42 /lib/Target/X86/X86RegisterInfo.cpp
parent69eda82e77410e2ab9599e9861af2c97a44e863d (diff)
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Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46635 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
-rw-r--r--lib/Target/X86/X86RegisterInfo.cpp10
1 files changed, 0 insertions, 10 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index 5f9f290..a0ffd33 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -525,16 +525,6 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
X86FI->getCalleeSavedFrameSize() +(-TailCallReturnAddrDelta));
uint64_t NumBytes = StackSize - X86FI->getCalleeSavedFrameSize();
- // Skip over the debug labels which mark the beginning of the function.
- if (MMI && MMI->needsFrameInfo()) {
- unsigned NumLabels = 0;
- while (NumLabels <= 1 &&
- MBBI != MBB.end() && MBBI->isDebugLabel()) {
- ++NumLabels;
- ++MBBI;
- }
- }
-
// Insert stack pointer adjustment for later moving of return addr. Only
// applies to tail call optimized functions where the callee argument stack
// size is bigger than the callers.