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Temporarily revert r75408. It appears to break the Apple-style builds:

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x86_64-apple-darwin10-gcc -c   -g -O2  -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-definition -Wmissing-format-attribute   -mdynamic-no-pic -DHAVE_CONFIG_H -I. -I. -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/. -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../include -I./../intl -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../libcpp/include  -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~dst/Developer/usr/local/include -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~obj/src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmCore.roots/llvmCore~dst/Developer/usr/local/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DLLVM_VERSION_INFO='"9999"' -DBUILD_LLVM_APPLE_STYLE   /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/tree-ssa-alias.c -o tree-ssa-alias.o
/var/tmp//ccJQ2JBT.s:4134:Incorrect register `%rcx' used with `l' suffix
make[2]: *** [tree-ssa-live.o] Error 1
make[2]: *** Waiting for unfinished jobs....

llvm-svn: 75412
This commit is contained in:
Bill Wendling 2009-07-12 02:49:22 +00:00
parent 7cb010e885
commit dcf4c8e237
3 changed files with 17 additions and 28 deletions
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24
lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -1604,7 +1604,7 @@ SDNode *X86DAGToDAGISel::Select(SDValue N) {
break;
case MVT::i64:
LoReg = X86::RAX; HiReg = X86::RDX;
ClrOpcode = ~0U; // NOT USED.
ClrOpcode = X86::MOV64r0;
SExtOpcode = X86::CQO;
break;
}
@ -1643,26 +1643,8 @@ SDNode *X86DAGToDAGISel::Select(SDValue N) {
SDValue(CurDAG->getTargetNode(SExtOpcode, dl, MVT::Flag, InFlag),0);
} else {
// Zero out the high part, effectively zero extending the input.
SDValue ClrNode;
if (NVT.getSimpleVT() == MVT::i64) {
ClrNode = SDValue(CurDAG->getTargetNode(X86::MOV32r0, dl, MVT::i32),
0);
// We just did a 32-bit clear, insert it into a 64-bit register to
// clear the whole 64-bit reg.
SDValue Undef =
SDValue(CurDAG->getTargetNode(TargetInstrInfo::IMPLICIT_DEF,
dl, MVT::i64), 0);
SDValue SubRegNo =
CurDAG->getTargetConstant(X86::SUBREG_32BIT, MVT::i32);
ClrNode =
SDValue(CurDAG->getTargetNode(TargetInstrInfo::INSERT_SUBREG, dl,
MVT::i64, Undef, ClrNode, SubRegNo),
0);
} else {
ClrNode = SDValue(CurDAG->getTargetNode(ClrOpcode, dl, NVT), 0);
}
SDValue ClrNode = SDValue(CurDAG->getTargetNode(ClrOpcode, dl, NVT),
0);
InFlag = CurDAG->getCopyToReg(CurDAG->getEntryNode(), dl, HiReg,
ClrNode, InFlag).getValue(1);
}

12
lib/Target/X86/X86Instr64bit.td
View File

@ -1305,12 +1305,14 @@ def Int_CVTTSS2SI64rm: RSSI<0x2C, MRMSrcMem, (outs GR64:$dst), (ins f32mem:$src)
// Alias instructions that map movr0 to xor. Use xorl instead of xorq; it's
// equivalent due to implicit zero-extending, and it sometimes has a smaller
// encoding.
// FIXME: AddedComplexity gives this a higher priority than MOV64ri32. Remove
// FIXME: remove when we can teach regalloc that xor reg, reg is ok.
// FIXME: AddedComplexity gives MOV64r0 a higher priority than MOV64ri32. Remove
// when we have a better way to specify isel priority.
let AddedComplexity = 1 in
def : Pat<(i64 0),
(INSERT_SUBREG (i64 (IMPLICIT_DEF)), (MOV32r0), x86_subreg_32bit)>;
let Defs = [EFLAGS], AddedComplexity = 1,
isReMaterializable = 1, isAsCheapAsAMove = 1 in
def MOV64r0 : I<0x31, MRMInitReg, (outs GR64:$dst), (ins),
"xor{l}\t${dst:subreg32}, ${dst:subreg32}",
[(set GR64:$dst, 0)]>;
// Materialize i64 constant where top 32-bits are zero.
let AddedComplexity = 1, isReMaterializable = 1, isAsCheapAsAMove = 1 in

9
lib/Target/X86/X86InstrInfo.cpp
View File

@ -929,7 +929,8 @@ void X86InstrInfo::reMaterialize(MachineBasicBlock &MBB,
default: break;
case X86::MOV8r0:
case X86::MOV16r0:
case X86::MOV32r0: {
case X86::MOV32r0:
case X86::MOV64r0: {
if (!isSafeToClobberEFLAGS(MBB, I)) {
unsigned Opc = 0;
switch (Orig->getOpcode()) {
@ -937,6 +938,7 @@ void X86InstrInfo::reMaterialize(MachineBasicBlock &MBB,
case X86::MOV8r0: Opc = X86::MOV8ri; break;
case X86::MOV16r0: Opc = X86::MOV16ri; break;
case X86::MOV32r0: Opc = X86::MOV32ri; break;
case X86::MOV64r0: Opc = X86::MOV64ri32; break;
}
BuildMI(MBB, I, DL, get(Opc), DestReg).addImm(0);
Emitted = true;
@ -2163,6 +2165,8 @@ X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
NewMI = MakeM0Inst(*this, X86::MOV16mi, MOs, MI);
else if (MI->getOpcode() == X86::MOV32r0)
NewMI = MakeM0Inst(*this, X86::MOV32mi, MOs, MI);
else if (MI->getOpcode() == X86::MOV64r0)
NewMI = MakeM0Inst(*this, X86::MOV64mi32, MOs, MI);
else if (MI->getOpcode() == X86::MOV8r0)
NewMI = MakeM0Inst(*this, X86::MOV8mi, MOs, MI);
if (NewMI)
@ -2361,9 +2365,10 @@ bool X86InstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
OpcodeTablePtr = &RegOp2MemOpTable2Addr;
} else if (OpNum == 0) { // If operand 0
switch (Opc) {
case X86::MOV8r0:
case X86::MOV16r0:
case X86::MOV32r0:
case X86::MOV64r0:
case X86::MOV8r0:
return true;
default: break;
}