Date: Sat, 23 Feb 2013 22:48:12 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r247205 - head/contrib/llvm/lib/Target/X86 Message-ID: <201302232248.r1NMmCPo082248@svn.freebsd.org>
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Author: dim Date: Sat Feb 23 22:48:12 2013 New Revision: 247205 URL: http://svnweb.freebsd.org/changeset/base/247205 Log: Pull in r175962 from upstream llvm trunk: X86: Disable cmov-memory patterns on subtargets without cmov. Fixes PR15115. For the i386 arch, this should enable cmov instructions only on -march=pentiumpro and higher. Since our default CPU is i486, cmov instructions will now be disabled by default. MFC after: 1 week Modified: head/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Modified: head/contrib/llvm/lib/Target/X86/X86InstrCompiler.td ============================================================================== --- head/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Sat Feb 23 22:46:26 2013 (r247204) +++ head/contrib/llvm/lib/Target/X86/X86InstrCompiler.td Sat Feb 23 22:48:12 2013 (r247205) @@ -1076,12 +1076,14 @@ def : Pat<(X86cmp GR64:$src1, 0), // inverted. multiclass CMOVmr<PatLeaf InvertedCond, Instruction Inst16, Instruction Inst32, Instruction Inst64> { - def : Pat<(X86cmov (loadi16 addr:$src1), GR16:$src2, InvertedCond, EFLAGS), - (Inst16 GR16:$src2, addr:$src1)>; - def : Pat<(X86cmov (loadi32 addr:$src1), GR32:$src2, InvertedCond, EFLAGS), - (Inst32 GR32:$src2, addr:$src1)>; - def : Pat<(X86cmov (loadi64 addr:$src1), GR64:$src2, InvertedCond, EFLAGS), - (Inst64 GR64:$src2, addr:$src1)>; + let Predicates = [HasCMov] in { + def : Pat<(X86cmov (loadi16 addr:$src1), GR16:$src2, InvertedCond, EFLAGS), + (Inst16 GR16:$src2, addr:$src1)>; + def : Pat<(X86cmov (loadi32 addr:$src1), GR32:$src2, InvertedCond, EFLAGS), + (Inst32 GR32:$src2, addr:$src1)>; + def : Pat<(X86cmov (loadi64 addr:$src1), GR64:$src2, InvertedCond, EFLAGS), + (Inst64 GR64:$src2, addr:$src1)>; + } } defm : CMOVmr<X86_COND_B , CMOVAE16rm, CMOVAE32rm, CMOVAE64rm>;
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