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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-04-13 19:06:14 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-04-13 19:06:14 +0000 |
| commit | 8d17160e2cf9a1645b4b06b0cd575aef6195b108 (patch) | |
| tree | 3e91c27ba1458073bca280e9d47f3d1a938414a4 /lib/Target/X86/Disassembler/X86Disassembler.cpp | |
| parent | 005de5ef33daf743a919c8ef5cd17c354df50c85 (diff) | |
Teach MachineSinking to handle easy critical edges.
Sometimes it is desirable to sink instructions along a critical edge:
x = ...
if (a && b) ...
else use(x);
The 'a && b' condition creates a critical edge to the else block, but we still
want to sink the computation of x into the block. The else block is dominated by
the parent block, so we are not pushing instructions into new code paths.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101165 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/Disassembler/X86Disassembler.cpp')
0 files changed, 0 insertions, 0 deletions