[tree-ssa] Patch: add -fuse-global-var
Dale Johannesen
dalej@apple.com
Mon Jan 19 22:14:00 GMT 2004
This adds a new flag, -fuse-global-var, to control whether the
.GLOBAL_VAR mechanism
is used or not. The default is unchanged. Two reasons:
- enable best code gen when the user is willing to accept slow
compilation (e.g. benchmarking)
- permit construction of small testcases for bugs dependent on
.GLOBAL_VAR being used
Bootstrapped and tested on Darwin.
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2004-01-19 Dale Johannesen <dalej@apple.com>
* common.opt: Add -fuse-global-var (flag_use_global_var).
opts.c: Ditto.
toplev.c: Ditto.
toplev.h: Ditto.
tree-dfa.c: Use it.
doc/invoke.texi: Document it.
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