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* [Bug tree-optimization/32696] New: [4.1/4.2 Regression] ICE in chain_of_csts_start
@ 2007-07-09 12:49 jakub at gcc dot gnu dot org
2007-07-09 12:54 ` [Bug tree-optimization/32696] " jakub at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-07-09 12:49 UTC (permalink / raw)
To: gcc-bugs
typedef signed long long int WordS64;
typedef unsigned long long int Word64;
int
foo (Word64 *p)
{
while (1)
{
WordS64 c = 0x1llu;
WordS64 x = *p;
if (c >= 0)
{
if (x > (WordS64) 0x7FFFFFFFFFFFFFFFll - c)
return 6;
}
else if (x < (WordS64) 0x8000000000000000ll - c)
return 7;
p++;
}
}
ICEs at -O1 or -O2 in chain_of_csts_start, which is called on
<nop_expr 0x2aaaae936d40
type <integer_type 0x2aaaae93b790 long long int sizes-gimplified DI
size <integer_cst 0x2aaaae92bdb0 constant invariant 64>
unit size <integer_cst 0x2aaaae92bde0 constant invariant 8>
align 64 symtab 0 alias set 3 precision 64 min <integer_cst
0x2aaaae92bf00 -9223372036854775808> max <integer_cst 0x2aaaae92bf30
9223372036854775807>
pointer_to_this <pointer_type 0x2aaaae9e1840>>
arg 0 <ssa_name 0x2aaaaeafb780
type <integer_type 0x2aaaaeaf69a0 WordS64 sizes-gimplified public DI
size <integer_cst 0x2aaaae92bdb0 64> unit size <integer_cst 0x2aaaae92bde0 8>
align 64 symtab 0 alias set -1 precision 64 min <integer_cst
0x2aaaae92bf00 -9223372036854775808> max <integer_cst 0x2aaaae92bf30
9223372036854775807>>
var <var_decl 0x2aaaaeaf6d10 x> def_stmt <modify_expr 0x2aaaae931960>
version 6>>
but assumes the argument is SSA_NAME.
--
Summary: [4.1/4.2 Regression] ICE in chain_of_csts_start
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32696
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/32696] [4.1/4.2 Regression] ICE in chain_of_csts_start
2007-07-09 12:49 [Bug tree-optimization/32696] New: [4.1/4.2 Regression] ICE in chain_of_csts_start jakub at gcc dot gnu dot org
@ 2007-07-09 12:54 ` jakub at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-07-09 12:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2007-07-09 12:54 -------
Oops, sorry.
*** This bug has been marked as a duplicate of 32694 ***
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32696
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2007-07-09 12:49 [Bug tree-optimization/32696] New: [4.1/4.2 Regression] ICE in chain_of_csts_start jakub at gcc dot gnu dot org
2007-07-09 12:54 ` [Bug tree-optimization/32696] " jakub at gcc dot gnu dot org
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