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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-09-30 19:44:31 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-09-30 19:44:31 +0000 |
| commit | 665aa6efcc3ea940e5f95159409766e67123d1db (patch) | |
| tree | 4e74861e72339a1ea3fd34027a551eeb8a0795cd /llvm/lib/Target/ARM | |
| parent | 91bbb5547dd9c50cc120e093de66a4e316e899af (diff) | |
| download | bcm5719-llvm-665aa6efcc3ea940e5f95159409766e67123d1db.tar.gz bcm5719-llvm-665aa6efcc3ea940e5f95159409766e67123d1db.zip | |
When isel is emitting instructions for an x86 target without CMOV, the CFG is
edited during emission.
If the basic block ends in a switch that gets lowered to a jump table, any
phis at the default edge were getting updated wrong. The jump table data
structure keeps a pointer to the header blocks that wasn't getting updated
after the MBB is split.
This bug was exposed on 32-bit Linux when disabling critical edge splitting in
codegen prepare.
The fix is to uipdate stale MBB pointers whenever a block is split during
emission.
llvm-svn: 115191
Diffstat (limited to 'llvm/lib/Target/ARM')
0 files changed, 0 insertions, 0 deletions
