[PATCH] Strenghten assumption about gswitch statements.

[Martin Liška]

Hi.

Now we should not meet a degenerated gswitch statements.

Patch can bootstrap on x86_64-linux-gnu and survives regression tests.

Ready to be installed?
Martin

gcc/ChangeLog:

2018-08-27  Martin Liska  <mliska@suse.cz>

	* tree-cfg.c (find_taken_edge_switch_expr): Replace not possible
	condition with assert.
	* tree-switch-conversion.c (switch_conversion::expand):
	Likewise.
---
 gcc/tree-cfg.c               | 17 +++++++----------
 gcc/tree-switch-conversion.c |  9 +--------
 2 files changed, 8 insertions(+), 18 deletions(-)


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