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authorMichael Liao <michael.liao@intel.com>2013-03-01 18:40:30 +0000
committerMichael Liao <michael.liao@intel.com>2013-03-01 18:40:30 +0000
commita6b20ced765b67a85d9219d0c8547fc9c133e14f (patch)
treef3a6b8ebc9b5844b4eebe89f46f9dc3ba451b790 /lib/CodeGen/TargetLoweringBase.cpp
parentb8f307b2d6b5fb1380803ff91696902bebbef7c6 (diff)
Fix PR10475
- ISD::SHL/SRL/SRA must have either both scalar or both vector operands but TLI.getShiftAmountTy() so far only return scalar type. As a result, backend logic assuming that breaks. - Rename the original TLI.getShiftAmountTy() to TLI.getScalarShiftAmountTy() and re-define TLI.getShiftAmountTy() to return target-specificed scalar type or the same vector type as the 1st operand. - Fix most TICG logic assuming TLI.getShiftAmountTy() a simple scalar type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176364 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TargetLoweringBase.cpp')
-rw-r--r--lib/CodeGen/TargetLoweringBase.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index 2a02f6a3c0..f0f3d34fa3 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -744,10 +744,17 @@ TargetLoweringBase::~TargetLoweringBase() {
delete &TLOF;
}
-MVT TargetLoweringBase::getShiftAmountTy(EVT LHSTy) const {
+MVT TargetLoweringBase::getScalarShiftAmountTy(EVT LHSTy) const {
return MVT::getIntegerVT(8*TD->getPointerSize(0));
}
+EVT TargetLoweringBase::getShiftAmountTy(EVT LHSTy) const {
+ assert(LHSTy.isInteger() && "Shift amount is not an integer type!");
+ if (LHSTy.isVector())
+ return LHSTy;
+ return getScalarShiftAmountTy(LHSTy);
+}
+
/// canOpTrap - Returns true if the operation can trap for the value type.
/// VT must be a legal type.
bool TargetLoweringBase::canOpTrap(unsigned Op, EVT VT) const {