--- Comment #11 from shcherbakov at daad-alumni dot de 2010-02-10 12:44
---
Ok, m32c uses "memcpy" for all block moves (4 ints is a DImode, not BLKmode).
Additionally, it supports pre-decrement addressing mode, that enables a
mutually exclusive case to the one showing t
--- Comment #9 from shcherbakov at daad-alumni dot de 2010-01-30 22:48
---
In general 'black box' case - yes. However, here there are 2 factors:
1) It is clear from the sources that 2 similar situations (pre-decrement and
post-increment) are handled in a different way, an
--- Comment #7 from shcherbakov at daad-alumni dot de 2010-01-30 21:30
---
(In reply to comment #6)
> Doesn't work, an ARM gcc built with that modification ICEs while trying to
> compile __muldi3() in libgcc2.c.
You don't need libgcc to reproduce the problem. If gcc b
--- Comment #5 from shcherbakov at daad-alumni dot de 2010-01-30 20:08
---
Oops, missed a semicolon in the first line of "test case" (compile it with
g++).
ARM uses ACCUMULATE_OUTGOING_ARGS instead of PUSH_ARGS. To reproduce the
problem on ARM, you need to comment ou
--- Comment #2 from shcherbakov at daad-alumni dot de 2010-01-30 15:37
---
(In reply to comment #1)
> What is msp430-gcc?
>
msp430-gcc is a port of GCC on TI MSP430 platform, that revealed the bug.
However, as shown in the patch, the discovered problem is general to GCC4 (will
mp; CONSTANT_P (from_addr))
--
Summary: move_by_pieces() incorrectly pushes structures to stack
Product: gcc
Version: 4.4.2
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: middle-end
AssignedTo: unassigned a
--- Comment #12 from shcherbakov at daad-alumni dot de 2010-01-05 16:27
---
I would also appreciate if an attribute like this is supported by gcc due to
several reasons:
1. Developers that want to ensure that a virtual method actually overrides
another virtual method of a base class
--- Comment #9 from shcherbakov at daad-alumni dot de 2009-09-02 16:12
---
> This change is incorrect because a register ceases to be a loop invariant
> if it is clobbered.
Agreed. Tested your patch. Works fine for me.
Is there any way to know, from which version will the pa
--- Comment #1 from shcherbakov at daad-alumni dot de 2009-08-30 10:14
---
*** This bug has been marked as a duplicate of 41188 ***
--
shcherbakov at daad-alumni dot de changed:
What|Removed |Added
--- Comment #4 from shcherbakov at daad-alumni dot de 2009-08-30 10:14
---
*** Bug 41189 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41188
--- Comment #1 from shcherbakov at daad-alumni dot de 2009-08-30 10:14
---
*** This bug has been marked as a duplicate of 41188 ***
--
shcherbakov at daad-alumni dot de changed:
What|Removed |Added
--- Comment #3 from shcherbakov at daad-alumni dot de 2009-08-30 10:14
---
*** Bug 41190 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41188
--- Comment #2 from shcherbakov at daad-alumni dot de 2009-08-30 10:13
---
*** Bug 41191 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41188
--- Comment #1 from shcherbakov at daad-alumni dot de 2009-08-30 10:13
---
*** This bug has been marked as a duplicate of 41188 ***
--
shcherbakov at daad-alumni dot de changed:
What|Removed |Added
SN and an operand to detect such
cases in a uniform way.
--
Summary: move_invariant_reg() damages CBRANCH instructions with
CLOBBER attribute
Product: gcc
Version: 4.3.4
Status: UNCONFIRMED
Severity: major
Priority: P3
SN and an operand to detect such
cases in a uniform way.
--
Summary: move_invariant_reg() damages CBRANCH instructions with
CLOBBER attribute
Product: gcc
Version: 4.3.4
Status: UNCONFIRMED
Severity: major
Priority: P3
SN and an operand to detect such
cases in a uniform way.
--
Summary: move_invariant_reg() damages CBRANCH instructions with
CLOBBER attribute
Product: gcc
Version: 4.3.4
Status: UNCONFIRMED
Severity: major
Priority: P3
--- Comment #1 from shcherbakov at daad-alumni dot de 2009-08-30 10:10
---
A misprint in the description:
After move_invariant_reg() the insn_invalid_p(insn) returns 1 meaning that the
INSN is no longer valid.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41188
SN and an operand to detect such
cases in a uniform way.
--
Summary: move_invariant_reg() damages CBRANCH instructions with
CLOBBER attribute
Product: gcc
Version: 4.3.4
Status: UNCONFIRMED
Severity: major
Priority: P3
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