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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-01 12:19:08 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-01 12:19:08 +0000 |
| commit | 9a05f040e70494ab0092faa9ed10dc70ff1f4e66 (patch) | |
| tree | 5b7d59b8b3663292ddd132a6ea24ff9b23916ef2 /lib/Target/SystemZ | |
| parent | 341562b9fb6574b1c9492e52cec24106cd31ce51 (diff) | |
| download | external_llvm-9a05f040e70494ab0092faa9ed10dc70ff1f4e66.zip external_llvm-9a05f040e70494ab0092faa9ed10dc70ff1f4e66.tar.gz external_llvm-9a05f040e70494ab0092faa9ed10dc70ff1f4e66.tar.bz2 | |
[SystemZ] Add zero-extending high-word loads (LLCH and LLHH)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191742 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ')
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrInfo.cpp | 8 | ||||
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrInfo.td | 16 |
2 files changed, 22 insertions, 2 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.cpp b/lib/Target/SystemZ/SystemZInstrInfo.cpp index a1c0c36..7cbb4f7 100644 --- a/lib/Target/SystemZ/SystemZInstrInfo.cpp +++ b/lib/Target/SystemZ/SystemZInstrInfo.cpp @@ -814,6 +814,14 @@ SystemZInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const { expandRXYPseudo(MI, SystemZ::LH, SystemZ::LHH); return true; + case SystemZ::LLCMux: + expandRXYPseudo(MI, SystemZ::LLC, SystemZ::LLCH); + return true; + + case SystemZ::LLHMux: + expandRXYPseudo(MI, SystemZ::LLH, SystemZ::LLHH); + return true; + case SystemZ::LMux: expandRXYPseudo(MI, SystemZ::L, SystemZ::LFH); return true; diff --git a/lib/Target/SystemZ/SystemZInstrInfo.td b/lib/Target/SystemZ/SystemZInstrInfo.td index 6eeb91b..4b50747 100644 --- a/lib/Target/SystemZ/SystemZInstrInfo.td +++ b/lib/Target/SystemZ/SystemZInstrInfo.td @@ -456,9 +456,21 @@ let neverHasSideEffects = 1 in { def : Pat<(and GR64:$src, 0xffffffff), (LLGFR (EXTRACT_SUBREG GR64:$src, subreg_l32))>; -// 32-bit extensions from memory. -def LLC : UnaryRXY<"llc", 0xE394, azextloadi8, GR32, 1>; +// 32-bit extensions from 8-bit memory. LLCMux expands to LLC or LLCH, +// depending on the choice of register. +def LLCMux : UnaryRXYPseudo<"llc", azextloadi8, GRX32, 1>, + Requires<[FeatureHighWord]>; +def LLC : UnaryRXY<"llc", 0xE394, azextloadi8, GR32, 1>; +def LLCH : UnaryRXY<"llch", 0xE3C2, azextloadi8, GR32, 1>, + Requires<[FeatureHighWord]>; + +// 32-bit extensions from 16-bit memory. LLHMux expands to LLH or LLHH, +// depending on the choice of register. +def LLHMux : UnaryRXYPseudo<"llh", azextloadi16, GRX32, 2>, + Requires<[FeatureHighWord]>; def LLH : UnaryRXY<"llh", 0xE395, azextloadi16, GR32, 2>; +def LLHH : UnaryRXY<"llhh", 0xE3C6, azextloadi16, GR32, 2>, + Requires<[FeatureHighWord]>; def LLHRL : UnaryRILPC<"llhrl", 0xC42, aligned_azextloadi16, GR32>; // 64-bit extensions from memory. |