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Fix a bug in the bc reader/writer: we were not correctly encoding varargs

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nonccc calls (we were dropping the CC and tail flag).  This broke several
FORTRAN programs.

Testcase here: Regression/Assembler/2006-05-26-VarargsCallEncode.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28501 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-05-26 18:42:34 +00:00
parent e812d1133b
commit a65371ea25
2 changed files with 19 additions and 9 deletions
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11
lib/Bytecode/Writer/Writer.cpp
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@ -527,7 +527,8 @@ void BytecodeWriter::outputInstrVarArgsCall(const Instruction *I,
// variable argument.
NumFixedOperands = 3+NumParams;
}
output_vbr(2 * I->getNumOperands()-NumFixedOperands);
output_vbr(2 * I->getNumOperands()-NumFixedOperands +
unsigned(Opcode == 56 || Opcode == 58));
// The type for the function has already been emitted in the type field of the
// instruction. Just emit the slot # now.
@ -548,6 +549,14 @@ void BytecodeWriter::outputInstrVarArgsCall(const Instruction *I,
assert(Slot >= 0 && "No slot number for value!?!?");
output_vbr((unsigned)Slot);
}
// If this is the escape sequence for call, emit the tailcall/cc info.
if (Opcode == 58) {
const CallInst *CI = cast<CallInst>(I);
output_vbr((CI->getCallingConv() << 1) | unsigned(CI->isTailCall()));
} else if (Opcode == 56) { // Invoke escape sequence.
output_vbr(cast<InvokeInst>(I)->getCallingConv());
}
}