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* [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
@ 2007-06-16 16:57 ubizjak at gmail dot com
2007-06-16 16:58 ` [Bug c++/32367] " ubizjak at gmail dot com
` (13 more replies)
0 siblings, 14 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2007-06-16 16:57 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1026 bytes --]
This happens when compiling povray-3.6.1 with gcc version 4.3.0 20070616
(experimental). The testcase (reduced with delta) is attached to the report.
g++ -O2 xxx.cpp
xxx.cpp: In function double pov::Evaluate_TPat(pov::TPATTERN*, double*,
pov::INTERSECTION*):
xxx.cpp:146: internal compiler error: in build_polynomial_chrec, at
tree-chrec.h:113
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: internal compiler error: in build_polynomial_chrec, at
tree-chrec.h:113
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ubizjak at gmail dot com
GCC build triplet: x86_64-pc-linux-gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug c++/32367] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
@ 2007-06-16 16:58 ` ubizjak at gmail dot com
2007-06-16 17:21 ` [Bug tree-optimization/32367] [4.3 Regression] " pinskia at gcc dot gnu dot org
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2007-06-16 16:58 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from ubizjak at gmail dot com 2007-06-16 16:58 -------
Created an attachment (id=13713)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13713&action=view)
reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
2007-06-16 16:58 ` [Bug c++/32367] " ubizjak at gmail dot com
@ 2007-06-16 17:21 ` pinskia at gcc dot gnu dot org
2007-06-16 20:03 ` pinskia at gcc dot gnu dot org
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 17:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2007-06-16 17:21 -------
This was caued by me.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Component|c++ |tree-optimization
Keywords| |ice-on-valid-code
Summary|internal compiler error: in |[4.3 Regression] internal
|build_polynomial_chrec, at |compiler error: in
|tree-chrec.h:113 |build_polynomial_chrec, at
| |tree-chrec.h:113
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
2007-06-16 16:58 ` [Bug c++/32367] " ubizjak at gmail dot com
2007-06-16 17:21 ` [Bug tree-optimization/32367] [4.3 Regression] " pinskia at gcc dot gnu dot org
@ 2007-06-16 20:03 ` pinskia at gcc dot gnu dot org
2007-06-16 20:32 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 20:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2007-06-16 20:03 -------
The chrec is
{{&BinomialCoefficients[0], +, 4}_1, +, {0, +, 4}_1}_1
Which looks ok and correct.
the comment before chrec_component_in_loop_num, says:
/* Returns the evolution part of CHREC in LOOP_NUM when RIGHT is
true, otherwise returns the initial condition in LOOP_NUM. */
So the initialize condition here is &BinomialCoefficients[0] p+ 0.
I guess this part needs a fixing.
Note we get in build_polynomial_chrec:
(gdb) p debug_generic_expr (left)
&BinomialCoefficients[0]
$16 = void
(gdb) p debug_generic_expr (right)
{&BinomialCoefficients[0], +, 4}_1
Which does not make sense at all, since we are going to create:
{&BinomialCoefficients[0], +, {&BinomialCoefficients[0], +, 4}_1 }_1
So that means the initialize condition that returns is:
&BinomialCoefficients[0] + &BinomialCoefficients[0]
Which really does not makes any sense at all.
So I just exposed a latent bug in chrec_component_in_loop_num.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-06-16 20:03:48
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (2 preceding siblings ...)
2007-06-16 20:03 ` pinskia at gcc dot gnu dot org
@ 2007-06-16 20:32 ` pinskia at gcc dot gnu dot org
2007-06-16 20:41 ` pinskia at gcc dot gnu dot org
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 20:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2007-06-16 20:31 -------
Here is a reduced testcase:
int BinomialCoefficients[17 * 35];
void InitializeBinomialCoefficients ()
{
unsigned n, k;
int *ptr = BinomialCoefficients;
for ( n = 1; n <= 33; ++n)
{
for ( k = 1; k < n; ++k)
++ptr;
*ptr = 1;
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (3 preceding siblings ...)
2007-06-16 20:32 ` pinskia at gcc dot gnu dot org
@ 2007-06-16 20:41 ` pinskia at gcc dot gnu dot org
2007-06-16 20:56 ` pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 20:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2007-06-16 20:40 -------
Actually I reduced it a little too far (I had fixed the ICE in one case but was
reducing another ICE):
int BinomialCoefficientsInited = 0;
int BinomialCoefficients[17 * 35];
double Evaluate_TPat (void)
{
unsigned n, k;
if (BinomialCoefficientsInited == 0)
{
int *ptr = BinomialCoefficients;
for (n = 1; n <= 33; ++n)
{
for (k = 1; k < n; ++k)
++ptr;
*ptr = 1;
}
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (4 preceding siblings ...)
2007-06-16 20:41 ` pinskia at gcc dot gnu dot org
@ 2007-06-16 20:56 ` pinskia at gcc dot gnu dot org
2007-06-16 21:16 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 20:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from pinskia at gcc dot gnu dot org 2007-06-16 20:55 -------
This patch works for me (and I think it is correct):
Index: tree-chrec.c
===================================================================
--- tree-chrec.c (revision 125757)
+++ tree-chrec.c (working copy)
@@ -712,6 +712,10 @@
else
component = CHREC_LEFT (chrec);
+ if (!right && TREE_CODE (CHREC_LEFT (chrec)) == POLYNOMIAL_CHREC
+ && CHREC_VARIABLE (CHREC_LEFT (chrec)) == CHREC_VARIABLE (chrec))
+ return chrec_component_in_loop_num (CHREC_LEFT (chrec), loop_num,
right);
+
if (TREE_CODE (CHREC_LEFT (chrec)) != POLYNOMIAL_CHREC
|| CHREC_VARIABLE (CHREC_LEFT (chrec)) != CHREC_VARIABLE (chrec))
return component;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
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* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (5 preceding siblings ...)
2007-06-16 20:56 ` pinskia at gcc dot gnu dot org
@ 2007-06-16 21:16 ` pinskia at gcc dot gnu dot org
2007-06-16 21:41 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 21:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from pinskia at gcc dot gnu dot org 2007-06-16 21:16 -------
But I am not 100% the rest of the correct is correct.
Daniel/Pop,
Could you look into my patch to see if it is correct? My pointer_plus
exposed a latent bug with chrec_component_in_loop_num:
for
initial_condition_in_loop_num({{&BinomialCoefficients[0], +, 4}_1, +, {0, +,
4}_1}_1, 1)
We were creating:
{&BinomialCoefficients[0], +, {&BinomialCoefficients[0], +, 4}_1 }_1
Which does not make sense at all. because the second iteration of the loop, we
would have
&BinomialCoefficients[0] + &BinomialCoefficients[0] which does not make sense.
Do you agree that for
initial_condition_in_loop_num({{&BinomialCoefficients[0], +, 4}_1, +, {0, +,
4}_1}_1, 1)
Should return &BinomialCoefficients[0] ?
Thanks,
Andrew Pinski
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dberlin at gcc dot gnu dot
| |org, spop at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (6 preceding siblings ...)
2007-06-16 21:16 ` pinskia at gcc dot gnu dot org
@ 2007-06-16 21:41 ` pinskia at gcc dot gnu dot org
2007-06-17 13:38 ` spop at gcc dot gnu dot org
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-16 21:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from pinskia at gcc dot gnu dot org 2007-06-16 21:41 -------
here is a testcase which also crashes for i686 (32bits):
int BinomialCoefficientsInited = 0;
int BinomialCoefficients[17 * 35];
double Evaluate_TPat (void)
{
unsigned short n, k;
if (BinomialCoefficientsInited == 0)
{
int *ptr = BinomialCoefficients;
for (n = 1; n <= 33; ++n)
{
for (k = 1; k < n; ++k)
++ptr;
*ptr = 1;
}
}
}
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet|x86_64-pc-linux-gnu |
GCC host triplet|x86_64-pc-linux-gnu |
GCC target triplet|x86_64-pc-linux-gnu |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (7 preceding siblings ...)
2007-06-16 21:41 ` pinskia at gcc dot gnu dot org
@ 2007-06-17 13:38 ` spop at gcc dot gnu dot org
2007-06-17 17:32 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-06-17 13:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from spop at gcc dot gnu dot org 2007-06-17 13:38 -------
Subject: Re: [4.3 Regression] internal compiler error: in
build_polynomial_chrec, at tree-chrec.h:113
{{&BinomialCoefficients[0], +, 4}_1, +, {0, +, 4}_1}_1
does not look good: the left part should be invariant in loop_1.
It's most certainly the code in scev analysis that is in fault here.
I'll have a look. Thanks for pointing me to the bug.
Sebastian
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (8 preceding siblings ...)
2007-06-17 13:38 ` spop at gcc dot gnu dot org
@ 2007-06-17 17:32 ` pinskia at gcc dot gnu dot org
2007-06-17 19:13 ` spop at gcc dot gnu dot org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-17 17:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from pinskia at gcc dot gnu dot org 2007-06-17 17:32 -------
> {{&BinomialCoefficients[0], +, 4}_1, +, {0, +, 4}_1}_1
> does not look good: the left part should be invariant in loop_1.
> It's most certainly the code in scev analysis that is in fault here.
> I'll have a look. Thanks for pointing me to the bug.
Ok, thanks. Just to let people know, {{&BinomialCoefficients[0], +, 4}_1, +,
{0, +, 4}_1}_1 was also showing up on the trunk before the pointer_plus was
merged in.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (9 preceding siblings ...)
2007-06-17 17:32 ` pinskia at gcc dot gnu dot org
@ 2007-06-17 19:13 ` spop at gcc dot gnu dot org
2007-06-17 19:17 ` spop at gcc dot gnu dot org
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-06-17 19:13 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from spop at gcc dot gnu dot org 2007-06-17 19:13 -------
Subject: Re: [4.3 Regression] internal compiler error: in
build_polynomial_chrec, at tree-chrec.h:113
The ptrplus patch contains the following code:
*************** interpret_rhs_modify_stmt (struct loop *
*** 1611,1616 ****
--- 1615,1630 ----
switch (TREE_CODE (opnd1))
{
+ case POINTER_PLUS_EXPR:
+ opnd10 = TREE_OPERAND (opnd1, 0);
+ opnd11 = TREE_OPERAND (opnd1, 1);
+ chrec10 = analyze_scalar_evolution (loop, opnd10);
+ chrec11 = analyze_scalar_evolution (loop, opnd11);
+ chrec10 = chrec_convert (type, chrec10, at_stmt);
+ chrec11 = chrec_convert (sizetype, chrec11, at_stmt);
+ res = chrec_fold_plus (type, chrec10, chrec11);
+ break;
+
case PLUS_EXPR:
opnd10 = TREE_OPERAND (opnd1, 0);
opnd11 = TREE_OPERAND (opnd1, 1);
At this point we have the following values:
(gdb) call debug_generic_expr (chrec10)
{ptr_7, +, (unsigned int) (n_20 + 65535) * 4}_1
(gdb) call debug_generic_expr (chrec11)
(unsigned int) {n_6 + 65535, +, 1}_1 * 4
(gdb) call debug_generic_expr (res)
{ptr_7 + (unsigned int) {n_6 + 65535, +, 1}_1 * 4, +, (unsigned int)
(n_20 + 65535) * 4}_1
chrec_fold_plus is completely disturbed by the "complicated" MULT_EXPR
"{}_1 * 4", and just considers this expression to be constant, and
finally it builds "ptr_7 + (unsigned int) {n_6 + 65535, +, 1}_1 * 4".
The code in chrec_fold_multiply that is producing this MULT_EXPR is:
return fold_build2 (MULT_EXPR, type, op0, op1);
(gdb) p op0
$42 = (tree) 0xb7c27444
(gdb) pgs
4
(gdb) p op1
$43 = (tree) 0xb7ccf6a0
(gdb) pgs
(unsigned int) (n_20 + 65535);
(gdb) pt
<nop_expr 0xb7ccf6a0
type <integer_type 0xb7c36000 unsigned int public unsigned sizetype SI
size <integer_cst 0xb7c27658 constant invariant 32>
unit size <integer_cst 0xb7c27444 constant invariant 4>
align 32 symtab 0 alias set -1 canonical type 0xb7c3c0d8
precision 32 min <integer_cst 0xb7c27674 0> max <integer_cst
0xb7c27c08 -1>>
arg 0 <plus_expr 0xb7c2d948
type <integer_type 0xb7c36288 short unsigned int
sizes-gimplified public unsigned HI
size <integer_cst 0xb7c275b0 constant invariant 16>
unit size <integer_cst 0xb7c275cc constant invariant 2>
align 16 symtab 0 alias set -1 canonical type 0xb7c36288
precision 16 min <integer_cst 0xb7c275e8 0> max <integer_cst
0xb7c27594 65535>>
arg 0 <ssa_name 0xb7cdb5e4 type <integer_type 0xb7c36288 short
unsigned int>
var <var_decl 0xb7cd70b8 n> def_stmt <gimple_modify_stmt
0xb7cda770>
version 20>
arg 1 <integer_cst 0xb7c27594 constant invariant 65535>>>
And here, unfortunately fold_build2 does not further simplify this
expression because of the cast to uint around the PLUS_EXPR.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (10 preceding siblings ...)
2007-06-17 19:13 ` spop at gcc dot gnu dot org
@ 2007-06-17 19:17 ` spop at gcc dot gnu dot org
2007-06-19 18:36 ` spop at gcc dot gnu dot org
2007-06-25 1:54 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-06-17 19:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from spop at gcc dot gnu dot org 2007-06-17 19:16 -------
Subject: Re: [4.3 Regression] internal compiler error: in
build_polynomial_chrec, at tree-chrec.h:113
> Ok, thanks. Just to let people know, {{&BinomialCoefficients[0], +, 4}_1, +,
> {0, +, 4}_1}_1 was also showing up on the trunk before the pointer_plus was
> merged in.
>
In the fix for this bug, I'm going to include the following assert
such that this inconsistency will not occur anymore.
Index: tree-chrec.h
===================================================================
--- tree-chrec.h (revision 125771)
+++ tree-chrec.h (working copy)
@@ -83,6 +83,7 @@ extern bool tree_contains_chrecs (tree,
extern bool evolution_function_is_affine_multivariate_p (tree, int);
extern bool evolution_function_is_univariate_p (tree);
extern unsigned nb_vars_in_chrec (tree);
+extern bool evolution_function_is_invariant_p (tree, int);
/* Determines whether CHREC is equal to zero. */
@@ -114,6 +115,8 @@ build_polynomial_chrec (unsigned loop_nu
else
gcc_assert (TREE_TYPE (left) == TREE_TYPE (right));
+ gcc_assert (evolution_function_is_invariant_p (left, loop_num));
+
if (chrec_zerop (right))
return left;
@@ -140,7 +143,6 @@ evolution_function_is_constant_p (tree c
}
}
-extern bool evolution_function_is_invariant_p (tree, int);
/* Determine whether the given tree is an affine evolution function or not.
*/
static inline bool
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
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* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (11 preceding siblings ...)
2007-06-17 19:17 ` spop at gcc dot gnu dot org
@ 2007-06-19 18:36 ` spop at gcc dot gnu dot org
2007-06-25 1:54 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-06-19 18:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from spop at gcc dot gnu dot org 2007-06-19 18:35 -------
Subject: Bug 32367
Author: spop
Date: Tue Jun 19 18:35:39 2007
New Revision: 125855
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125855
Log:
PR tree-optimization/32367
* tree-chrec.h (build_polynomial_chrec): Verify that the left hand side
of the chrec has no evolution in that loop.
* testsuite/gcc.dg/tree-ssa/pr32367.c: New.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr32367.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-chrec.h
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
` (12 preceding siblings ...)
2007-06-19 18:36 ` spop at gcc dot gnu dot org
@ 2007-06-25 1:54 ` pinskia at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-06-25 1:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #14 from pinskia at gcc dot gnu dot org 2007-06-25 01:54 -------
Fixed.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2007-06-25 1:54 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-06-16 16:57 [Bug c++/32367] New: internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113 ubizjak at gmail dot com
2007-06-16 16:58 ` [Bug c++/32367] " ubizjak at gmail dot com
2007-06-16 17:21 ` [Bug tree-optimization/32367] [4.3 Regression] " pinskia at gcc dot gnu dot org
2007-06-16 20:03 ` pinskia at gcc dot gnu dot org
2007-06-16 20:32 ` pinskia at gcc dot gnu dot org
2007-06-16 20:41 ` pinskia at gcc dot gnu dot org
2007-06-16 20:56 ` pinskia at gcc dot gnu dot org
2007-06-16 21:16 ` pinskia at gcc dot gnu dot org
2007-06-16 21:41 ` pinskia at gcc dot gnu dot org
2007-06-17 13:38 ` spop at gcc dot gnu dot org
2007-06-17 17:32 ` pinskia at gcc dot gnu dot org
2007-06-17 19:13 ` spop at gcc dot gnu dot org
2007-06-17 19:17 ` spop at gcc dot gnu dot org
2007-06-19 18:36 ` spop at gcc dot gnu dot org
2007-06-25 1:54 ` pinskia at gcc dot gnu dot org
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