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Re: [RFA] Limit stack usage growth caused by inliner

On Sun, Nov 05, 2006 at 10:27:25PM +0100, Jan Hubicka wrote:
> 	* invoke.texi (large-stack-frame, large-stack-frame-growth): New params.
> 	* cgraph.c (dump_cgraph_node): Dump stack usage.
> 	* cgraph.h (cgraph_local_info): Add estimated_self_stack_size.
> 	(cgraph_global_info): Add estimated_stack_size and stack_frame_offset.
> 	* cgraphunit.c (cgraph_analyze_function): Analyze stack sizes.
> 	* ipa-inline.c (cgraph_clone_inlined_nodes): Propagate stack usage.
> 	(cgraph_check_inline_limits): Limit stack growth.
> 	* cfgexpand.c: Include tree-inline.h.
> 	(account_stack_vars): New function.
> 	(expand_one_var): New param to just account the stack; return estimated
> 	size.
> 	(expand_used_vars_for_block): Update call of expand_one_var.
> 	(account_used_vars_for_block): New function.
> 	(estimated_stack_frame_size): Likewise.
> 	(init_vars_expansion, fini_vars_expansion): Break out from..
> 	(expand_used_vars): ... here.
> 	* tree-inline.h (estimated_stack_frame_size): Declare.

FYI, this patch causes a bunch of regressions on the trunk, x86_64-linux:
FAIL: libgomp.c++/nested-1.C  -O0  execution test
FAIL: libgomp.c++/nested-1.C  -O1  execution test
FAIL: libgomp.c++/pr27337.C  -O1  execution test
FAIL: libgomp.fortran/character1.f90  -O0  execution test
FAIL: libgomp.fortran/omp_parse4.f90  -O1  execution test
FAIL: libgomp.fortran/reference1.f90  -O0  execution test
FAIL: libgomp.fortran/reference2.f90  -O0  execution test

Reverting the {cgraph{,unit},ipa-inline,cfgexpand}.c changes cures all of


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