Conditional call instruction
David Edelsohn
dje@watson.ibm.com
Wed Feb 13 10:43:00 GMT 2002
>>>>> Dale Johannesen writes:
Mark> Do any of GCC's currently supported targets have a predicated call
Mark> instruction that GCC will use when appropriate? Roughly speaking,
Mark> this is an instruction that calls only if some condition is true,
Mark> and otherwise falls through.
Dale> rs6000/powerpc has this in the architecture, but I've never seen
Dale> gcc use it.
Yes, I was thinking about mentioning this, but Mark specifically
asked: "... that GCC will use when appropriate." POWER/PowerPC has a
"branch conditional and link" (bcl) "call" instruction, but it currently
is not described in the rs6000.md machine description.
David
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