6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-30 17:25:21 +00:00
Code Issues Projects Releases Wiki Activity

For PR411:

Browse Source 
This patch is an incremental step towards supporting a flat symbol table.
It de-overloads the intrinsic functions by providing type-specific intrinsics
and arranging for automatically upgrading from the old overloaded name to
the new non-overloaded name. Specifically:
  llvm.isunordered -> llvm.isunordered.f32, llvm.isunordered.f64
  llvm.sqrt -> llvm.sqrt.f32, llvm.sqrt.f64
  llvm.ctpop -> llvm.ctpop.i8, llvm.ctpop.i16, llvm.ctpop.i32, llvm.ctpop.i64
  llvm.ctlz -> llvm.ctlz.i8, llvm.ctlz.i16, llvm.ctlz.i32, llvm.ctlz.i64
  llvm.cttz -> llvm.cttz.i8, llvm.cttz.i16, llvm.cttz.i32, llvm.cttz.i64
New code should not use the overloaded intrinsic names. Warnings will be
emitted if they are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-01-16 21:12:35 +00:00
parent e86bf519e1
commit 0b118206bf
12 changed files with 3319 additions and 2310 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
lib/Analysis/ConstantFolding.cpp
View File

@@ -35,15 +35,26 @@ llvm::canConstantFoldCallTo(Function *F) {
const std::string &Name = F->getName();
switch (F->getIntrinsicID()) {
case Intrinsic::isunordered:
case Intrinsic::sqrt:
case Intrinsic::isunordered_f32:
case Intrinsic::isunordered_f64:
case Intrinsic::sqrt_f32:
case Intrinsic::sqrt_f64:
case Intrinsic::bswap_i16:
case Intrinsic::bswap_i32:
case Intrinsic::bswap_i64:
// FIXME: these should be constant folded as well
//case Intrinsic::ctpop:
//case Intrinsic::ctlz:
//case Intrinsic::cttz:
//case Intrinsic::ctpop_i8:
//case Intrinsic::ctpop_i16:
//case Intrinsic::ctpop_i32:
//case Intrinsic::ctpop_i64:
//case Intrinsic::ctlz_i8:
//case Intrinsic::ctlz_i16:
//case Intrinsic::ctlz_i32:
//case Intrinsic::ctlz_i64:
//case Intrinsic::cttz_i8:
//case Intrinsic::cttz_i16:
//case Intrinsic::cttz_i32:
//case Intrinsic::cttz_i64:
return true;
default: break;
}
@@ -125,7 +136,7 @@ llvm::ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands) {
return ConstantFP::get(Ty, log(V));
else if (Name == "log10" && V > 0)
return ConstantFoldFP(log10, V, Ty);
else if (Name == "llvm.sqrt") {
else if (Name == "llvm.sqrt.f32" || Name == "llvm.sqrt.f64") {
if (V >= -0.0)
return ConstantFP::get(Ty, sqrt(V));
else // Undefined
@@ -164,7 +175,7 @@ llvm::ConstantFoldCall(Function *F, const std::vector<Constant*> &Operands) {
if (ConstantFP *Op2 = dyn_cast<ConstantFP>(Operands[1])) {
double Op2V = Op2->getValue();
if (Name == "llvm.isunordered")
if (Name == "llvm.isunordered.f32" || Name == "llvm.isunordered.f64")
return ConstantBool::get(IsNAN(Op1V) || IsNAN(Op2V));
else
if (Name == "pow") {