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[PATCH, i386]: Fix PR target/19340


Hello!

Trivial fix, really.

In sched-rgn.c, function rest_of_hanlde_sched2, we claim for

  if (flag_sched2_use_superblocks || flag_sched2_use_traces)

that

      /* No liveness updating code yet, but it should be easy to do.
         reg-stack recomputes the liveness when needed for now.  */

However, in reg-stack.c, function reg_to_stack, we run life analysis only for
flag_sched2_use_superblocks flag.

No wonder, that -fsched2-use-traces does not work...

Attached patch fixes this oversight.

2005-11-07  Uros Bizjak  <uros@kss-loka.si>

	PR target/19340
	* reg-stack.c (reg_to_stack): Update register liveness also
	for flag_sched2_use_traces.

testsuite/

	PR target/19340
	* gcc.dg/pr19340.c: New test.

Patch is currently under regression test on i686-pc-linux-gnu. OK for mainline 
if regtest passes for c and c++?

Uros.

Attachment: pr19340.diff
Description: Binary data

Attachment: pr19340.c
Description: Text document


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