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Properly handle sdiv / udiv / srem / urem libcalls

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70764 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-05-03 13:18:16 +00:00
parent b78e214274
commit 813090cf89
3 changed files with 19 additions and 7 deletions
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4
include/llvm/CodeGen/RuntimeLibcalls.h
View File

@ -45,15 +45,19 @@ namespace RTLIB {
MUL_I32,
MUL_I64,
MUL_I128,
SDIV_I16,
SDIV_I32,
SDIV_I64,
SDIV_I128,
UDIV_I16,
UDIV_I32,
UDIV_I64,
UDIV_I128,
SREM_I16,
SREM_I32,
SREM_I64,
SREM_I128,
UREM_I16,
UREM_I32,
UREM_I64,
UREM_I128,

18
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -3308,16 +3308,20 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
switch (Node->getOpcode()) {
case ISD::UDIV:
case ISD::SDIV:
if (VT == MVT::i32) {
LC = Node->getOpcode() == ISD::UDIV
? RTLIB::UDIV_I32 : RTLIB::SDIV_I32;
isSigned = Node->getOpcode() == ISD::SDIV;
}
break;
isSigned = Node->getOpcode() == ISD::SDIV;
if (VT == MVT::i16)
LC = (isSigned ? RTLIB::SDIV_I16 : RTLIB::UDIV_I16);
else if (VT == MVT::i32)
LC = (isSigned ? RTLIB::SDIV_I32 : RTLIB::UDIV_I32);
else if (VT == MVT::i64)
LC = (isSigned ? RTLIB::SDIV_I64 : RTLIB::UDIV_I64);
else if (VT == MVT::i128)
LC = (isSigned ? RTLIB::SDIV_I128 : RTLIB::UDIV_I128);
break;
case ISD::MUL:
if (VT == MVT::i16)
LC = RTLIB::MUL_I16;
if (VT == MVT::i32)
else if (VT == MVT::i32)
LC = RTLIB::MUL_I32;
else if (VT == MVT::i64)
LC = RTLIB::MUL_I64;

4
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -67,15 +67,19 @@ static void InitLibcallNames(const char **Names) {
Names[RTLIB::MUL_I32] = "__mulsi3";
Names[RTLIB::MUL_I64] = "__muldi3";
Names[RTLIB::MUL_I128] = "__multi3";
Names[RTLIB::SDIV_I16] = "__divhi3";
Names[RTLIB::SDIV_I32] = "__divsi3";
Names[RTLIB::SDIV_I64] = "__divdi3";
Names[RTLIB::SDIV_I128] = "__divti3";
Names[RTLIB::UDIV_I32] = "__udivhi3";
Names[RTLIB::UDIV_I32] = "__udivsi3";
Names[RTLIB::UDIV_I64] = "__udivdi3";
Names[RTLIB::UDIV_I128] = "__udivti3";
Names[RTLIB::SREM_I16] = "__modhi3";
Names[RTLIB::SREM_I32] = "__modsi3";
Names[RTLIB::SREM_I64] = "__moddi3";
Names[RTLIB::SREM_I128] = "__modti3";
Names[RTLIB::UREM_I16] = "__umodsi3";
Names[RTLIB::UREM_I32] = "__umodsi3";
Names[RTLIB::UREM_I64] = "__umoddi3";
Names[RTLIB::UREM_I128] = "__umodti3";