diff options
| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-03-22 15:24:13 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-03-22 15:24:13 +0000 |
| commit | 86765fbe170198e7bb40fd8499d1354f4c786f60 (patch) | |
| tree | bb8a78f97becc91a026e336a3c228dcded56eaff /lib/Target/PowerPC/PPCHazardRecognizers.cpp | |
| parent | 89ec847ec79f422527dce0d5321be5526c84bb71 (diff) | |
Remove ABI-duplicated call instruction patterns.
We currently have a duplicated set of call instruction patterns depending
on the ABI to be followed (Darwin vs. Linux). This is a bit odd; while the
different ABIs will result in different instruction sequences, the actual
instructions themselves ought to be independent of the ABI. And in fact it
turns out that the only nontrivial difference between the two sets of
patterns is that in the PPC64 Linux ABI, the instruction used for indirect
calls is marked to take X11 as extra input register (which is indeed used
only with that ABI to hold an incoming environment pointer for nested
functions). However, this does not need to be hard-coded at the .td
pattern level; instead, the C++ code expanding calls can simply add that
use, just like it adds uses for argument registers anyway.
No change in generated code expected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177735 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCHazardRecognizers.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCHazardRecognizers.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCHazardRecognizers.cpp b/lib/Target/PowerPC/PPCHazardRecognizers.cpp index 6ed1fb9e6a..4bf1e33964 100644 --- a/lib/Target/PowerPC/PPCHazardRecognizers.cpp +++ b/lib/Target/PowerPC/PPCHazardRecognizers.cpp @@ -179,7 +179,7 @@ getHazardType(SUnit *SU, int Stalls) { } // Do not allow MTCTR and BCTRL to be in the same dispatch group. - if (HasCTRSet && (Opcode == PPC::BCTRL_Darwin || Opcode == PPC::BCTRL_SVR4)) + if (HasCTRSet && Opcode == PPC::BCTRL) return NoopHazard; // If this is a load following a store, make sure it's not to the same or |