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| author | Akira Hatanaka <ahatanaka@mips.com> | 2013-09-06 23:40:15 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2013-09-06 23:40:15 +0000 |
| commit | 1d04ca7987ef0abb5be07b11e3bb9c9e756a1fce (patch) | |
| tree | d0dc569e06404a16064bc3447d814eaa64a8ebb5 /lib/Target/Mips/InstPrinter | |
| parent | 77e1ebd18fc558620b97fe38f3ebbf825533655f (diff) | |
| download | llvm-1d04ca7987ef0abb5be07b11e3bb9c9e756a1fce.tar.gz llvm-1d04ca7987ef0abb5be07b11e3bb9c9e756a1fce.tar.bz2 llvm-1d04ca7987ef0abb5be07b11e3bb9c9e756a1fce.tar.xz | |
[mips] Make "b" (unconditional branch) a pseudo. "b" is an assembly idiom, which is
equivalent to "beq $zero, $zero, offset".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190220 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/InstPrinter')
| -rw-r--r-- | lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp b/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp index 755a948f72..231d48520e 100644 --- a/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp +++ b/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp @@ -230,8 +230,11 @@ bool MipsInstPrinter::printAlias(const char *Str, const MCInst &MI, bool MipsInstPrinter::printAlias(const MCInst &MI, raw_ostream &OS) { switch (MI.getOpcode()) { case Mips::BEQ: + // beq $zero, $zero, $L2 => b $L2 // beq $r0, $zero, $L2 => beqz $r0, $L2 - return isReg<Mips::ZERO>(MI, 1) && printAlias("beqz", MI, 0, 2, OS); + return isReg<Mips::ZERO>(MI, 0) && isReg<Mips::ZERO>(MI, 1) && + printAlias("b", MI, 2, OS) || + isReg<Mips::ZERO>(MI, 1) && printAlias("beqz", MI, 0, 2, OS); case Mips::BEQ64: // beq $r0, $zero, $L2 => beqz $r0, $L2 return isReg<Mips::ZERO_64>(MI, 1) && printAlias("beqz", MI, 0, 2, OS); |