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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-22 22:33:08 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-22 22:33:08 +0000 |
| commit | ec0ac3ca40633346fa1ca7629d278b692e46756d (patch) | |
| tree | 4f5c0ea92fe45d776074ccc751004329ec4073c2 /llvm/docs/WritingAnLLVMBackend.html | |
| parent | 30350cdbdf57d52d82992ef16a00eb781ffb0bd8 (diff) | |
| download | bcm5719-llvm-ec0ac3ca40633346fa1ca7629d278b692e46756d.tar.gz bcm5719-llvm-ec0ac3ca40633346fa1ca7629d278b692e46756d.zip | |
Reapply r128045 and r128051 with fixes.
This will extend the ranges of debug info variables in registers until they are
clobbered.
Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.
Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.
llvm-svn: 128114
Diffstat (limited to 'llvm/docs/WritingAnLLVMBackend.html')
0 files changed, 0 insertions, 0 deletions
