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[Bug tree-optimization/47967] [4.6 Regression] ICE: verify_stmts failed: conversion of register to a different size with -fipa-cp on undefined code
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 4 Mar 2011 23:07:41 +0000
- Subject: [Bug tree-optimization/47967] [4.6 Regression] ICE: verify_stmts failed: conversion of register to a different size with -fipa-cp on undefined code
- Auto-submitted: auto-generated
- References: <bug-47967-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47967
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-04 23:07:22 UTC ---
Author: jakub
Date: Fri Mar 4 23:07:20 2011
New Revision: 170689
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170689
Log:
PR tree-optimization/47967
* ipa-cp.c (build_const_val): Return NULL instead of creating
VIEW_CONVERT_EXPR for mismatching sizes.
(ipcp_create_replace_map): Return NULL if build_const_val failed.
(ipcp_insert_stage): If ipcp_create_replace_map returns NULL,
give up on versioning.
* gcc.c-torture/compile/pr47967.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr47967.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-cp.c
trunk/gcc/testsuite/ChangeLog