diff options
| author | Nate Begeman <natebegeman@mac.com> | 2004-10-07 22:30:03 +0000 |
|---|---|---|
| committer | Nate Begeman <natebegeman@mac.com> | 2004-10-07 22:30:03 +0000 |
| commit | b816f0298d21d258af07d6fe5909589b9b9ecba2 (patch) | |
| tree | 8bec364cca60853c2bf4e389e57120c52df944ff /lib/Target/PowerPC/PPC64ISelSimple.cpp | |
| parent | cb90de37a720b0b00d6303b49b8df6d5ac5f34f9 (diff) | |
Several fixes and enhancements to the PPC32 backend.
1. Fix an illegal argument to getClassB when deciding whether or not to
sign extend a byte load.
2. Initial addition of isLoad and isStore flags to the instruction .td file
for eventual use in a scheduler.
3. Rewrite of how constants are handled in emitSimpleBinaryOperation so
that we can emit the PowerPC shifted immediate instructions far more
often. This allows us to emit the following code:
int foo(int x) { return x | 0x00F0000; }
_foo:
.LBB_foo_0: ; entry
; IMPLICIT_DEF
oris r3, r3, 15
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16826 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPC64ISelSimple.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPC64ISelSimple.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPC64ISelSimple.cpp b/lib/Target/PowerPC/PPC64ISelSimple.cpp index defd1eaf4c..a4d545b21a 100644 --- a/lib/Target/PowerPC/PPC64ISelSimple.cpp +++ b/lib/Target/PowerPC/PPC64ISelSimple.cpp @@ -1664,8 +1664,9 @@ void PPC64ISel::emitSimpleBinaryOperation(MachineBasicBlock *MBB, static const unsigned OpcodeTab[] = { PPC::ADD, PPC::SUB, PPC::AND, PPC::OR, PPC::XOR }; + // FIXME: Convert this to the version from PPC32ISel static const unsigned ImmOpcodeTab[] = { - PPC::ADDI, PPC::SUBI, PPC::ANDIo, PPC::ORI, PPC::XORI + PPC::ADDI, PPC::ADDI, PPC::ANDIo, PPC::ORI, PPC::XORI }; static const unsigned RImmOpcodeTab[] = { PPC::ADDI, PPC::SUBFIC, PPC::ANDIo, PPC::ORI, PPC::XORI |