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| author | Hal Finkel <hfinkel@anl.gov> | 2012-08-28 02:10:33 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-08-28 02:10:33 +0000 |
| commit | f3c3828e57d922bbe912ffabbd9252b9f5100c14 (patch) | |
| tree | 88c10389bc18cee5a5f9045bc909db1d7c926c29 /lib/Target/PowerPC/PPCInstrInfo.td | |
| parent | d939cd68f40e6fa0ccd6bee6391374b66abd71a1 (diff) | |
| download | llvm-f3c3828e57d922bbe912ffabbd9252b9f5100c14.tar.gz llvm-f3c3828e57d922bbe912ffabbd9252b9f5100c14.tar.bz2 llvm-f3c3828e57d922bbe912ffabbd9252b9f5100c14.tar.xz | |
Allow remat of LI on PPC.
Allow load-immediates to be rematerialised in the register coalescer for
PPC. This makes test/CodeGen/PowerPC/big-endian-formal-args.ll fail,
because it relies on a register move getting emitted. The immediate load is
equivalent, so change this test case.
Patch by Tobias von Koch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162727 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCInstrInfo.td')
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td index 0230b4e795..864b13afc2 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.td +++ b/lib/Target/PowerPC/PPCInstrInfo.td @@ -972,7 +972,7 @@ def SUBFIC : DForm_2< 8, (outs GPRC:$rD), (ins GPRC:$rA, s16imm:$imm), [(set GPRC:$rD, (subc immSExt16:$imm, GPRC:$rA))]>; } -let isReMaterializable = 1 in { +let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in { def LI : DForm_2_r0<14, (outs GPRC:$rD), (ins symbolLo:$imm), "li $rD, $imm", IntSimple, [(set GPRC:$rD, immSExt16:$imm)]>; |