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[Bug rtl-optimization/20412] [4.0/4.1 Regression] RTL checking failure in the combiner
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Mar 2005 19:41:54 -0000
- Subject: [Bug rtl-optimization/20412] [4.0/4.1 Regression] RTL checking failure in the combiner
- References: <20050310190109.20412.kminola@eng.umd.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-10 19:41 -------
Without RTL checking we get this backtrace:
#0 0x0066027c in simplify_comparison (code=REG, pop0=0xbfffef8c, pop1=0xbfffef90) at ../../gcc/
combine.c:9584
#1 0x00650ad4 in simplify_set (x=0x4157ab04) at ../../gcc/combine.c:5169
#2 0x0064e8c4 in combine_simplify_rtx (x=0x4157ab04, op0_mode=VOIDmode, in_dest=0) at ../../
gcc/combine.c:4640
#3 0x0064b4cc in subst (x=0x4157ab04, from=0x41575800, to=0x4157aabc, in_dest=0,
unique_copy=0) at ../../gcc/combine.c:3682
#4 0x006459cc in try_combine (i3=0x41573a78, i2=0x41573a50, i1=0x41573a00,
new_direct_jump_p=0xbffff454) at ../../gcc/combine.c:2055
#5 0x00641f84 in combine_instructions (f=0x41506f60, nregs=133) at ../../gcc/combine.c:774
--
What |Removed |Added
----------------------------------------------------------------------------
Component|regression |rtl-optimization
Keywords| |ice-on-valid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20412