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comparison gen/asmstmt.cpp @ 978:6a32d2e18175

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Fix a latent bug in the asm code. I think that technically, using "*m0" instead of "*0" allows LLVM to pick between using the same memory as output 0 and using a new memory location. (So far I haven't been able to construct a testcase that actually breaks because of this, though)
author Frits van Bommel <fvbommel wxs.nl>
date Wed, 18 Feb 2009 03:38:12 +0100
parents 985104c0f1db
children 523bf4f166bc
comparison
equal deleted inserted replaced
977:3efbe9b0dd36 978:6a32d2e18175
393 // Change update operand to pure output operand. 393 // Change update operand to pure output operand.
394 *i = mw_cns; 394 *i = mw_cns;
395 395
396 // Add input operand with same value, with original as "matching output". 396 // Add input operand with same value, with original as "matching output".
397 std::ostringstream ss; 397 std::ostringstream ss;
398 ss << m_cns << (n + asmblock->outputcount); 398 ss << '*' << (n + asmblock->outputcount);
399 input_constraints.push_front(ss.str()); 399 input_constraints.push_front(ss.str());
400 input_values.push_front(output_values[n]); 400 input_values.push_front(output_values[n]);
401 } 401 }
402 llvmOutConstraints += *i; 402 llvmOutConstraints += *i;
403 llvmOutConstraints += ","; 403 llvmOutConstraints += ",";