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Generating complex ASM output
- From: "D. Towner" <towner at compsci dot bristol dot ac dot uk>
- To: gcc <gcc at gcc dot gnu dot org>
- Date: Wed, 13 Mar 2002 15:41:25 +0000 (GMT)
- Subject: Generating complex ASM output
Hi all,
I have a number of instruction patterns whose operands are rather
complicated. Whilst it might be possible to generate operand codes to
output these operands in different ways, I am looking for a way which is
easier. Is it possible to:
1) Output the assembly directly to the output file. For example:
(define_insn "*patternName"
[pattern matching]
""
"*{
if (operand[0] == something) fprintf(asmFile,"foo");
else fprintf(asmFile, "bar")}";
2) Safely allocate a new string, write the operands into that string, and
return the string. I could use a static string, but will this be safe -
how long must the string retain its contents before being overwritten by
another pattern match and assembly generation?
Thanks,
Dan.
===============================================================================
Dan Towner |
|
Computer Science Department | Email: D.W.Towner@bristol.ac.uk
University of Bristol | Web: http://www.cs.bris.ac.uk/~towner
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Woodland Road, Bristol, UK |
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