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author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-08-30 15:18:11 +0000 |
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committer | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2013-08-30 15:18:11 +0000 |
commit | 9bc94276e796d644cb425a7c7d38cc44dbf4e9c1 (patch) | |
tree | d294503b8a5692ef83cd100c8133c4fb39f8e10c /lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp | |
parent | 2cc396bfb06a8e4df2fae6450277e7a05ebf6e4b (diff) | |
download | external_llvm-9bc94276e796d644cb425a7c7d38cc44dbf4e9c1.zip external_llvm-9bc94276e796d644cb425a7c7d38cc44dbf4e9c1.tar.gz external_llvm-9bc94276e796d644cb425a7c7d38cc44dbf4e9c1.tar.bz2 |
[PowerPC] Add handling for conversions to fast-isel.
Yet another chunk of fast-isel code. This one handles various
conversions involving floating-point. (It also includes some
miscellaneous handling throughout the back end for LWA_32 and LWAX_32
that should have been part of the load-store patch.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189677 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp')
-rw-r--r-- | lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp index 08d7665..79af2ef 100644 --- a/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp +++ b/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp @@ -19,6 +19,7 @@ #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrInfo.h" #include "llvm/Support/raw_ostream.h" +#include "llvm/Target/TargetOpcodes.h" using namespace llvm; #include "PPCGenAsmWriter.inc" @@ -78,6 +79,17 @@ void PPCInstPrinter::printInst(const MCInst *MI, raw_ostream &O, } } + // For fast-isel, a COPY_TO_REGCLASS may survive this long. This is + // used when converting a 32-bit float to a 64-bit float as part of + // conversion to an integer (see PPCFastISel.cpp:SelectFPToI()), + // as otherwise we have problems with incorrect register classes + // in machine instruction verification. For now, just avoid trying + // to print it as such an instruction has no effect (a 32-bit float + // in a register is already in 64-bit form, just with lower + // precision). FIXME: Is there a better solution? + if (MI->getOpcode() == TargetOpcode::COPY_TO_REGCLASS) + return; + printInstruction(MI, O); printAnnotation(O, Annot); } |