[Bug middle-end/35509] [4.3/4.4 Regression] builtin isinf() mismatch to compile-time substitution

--- Comment #7 from dmixm at marine dot febras dot ru 2008-04-14 10:55 --- Possible the (isgreater(fabs(x), DBL_MAX) ? (signbit(x) ? -1 : 1) : 0) will be fast with common finite numbers? Question: in case of AVR target, is it possible to call extern isinf() function regardless of

[Bug target/35634] New: [avr] result of char promotion comes out of CHAR_MIN/MAX

promotion comes out of CHAR_MIN/MAX Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot

[Bug target/35509] New: [avr] 4.3.0: builtin isinf() mismatch to compile-time substitution

marine dot febras dot ru http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35509

[Bug target/35508] New: [avr] 4.3.0: undefined reference to `__ffshi2'

avr] 4.3.0: undefined reference to `__ffshi2' Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febra

[Bug target/35507] New: [avr] 4.3.0: size of small funcion increases from 2 to 29 words

: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot ru http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35507

[Bug target/35506] New: [avr] 4.3.0 buid error: illegal opcode movw for mcu avr3

ode movw for mcu avr3 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot ru http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35506

[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.

--- Comment #14 from dmixm at marine dot febras dot ru 2007-09-16 03:22 --- It was: (define_insn "movdi" [(set (match_operand:DI 0 "nonimmediate_operand" "") (match_operand:DI 1 "general_operand" ""))] &

[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.

--- Comment #12 from dmixm at marine dot febras dot ru 2007-09-09 21:59 --- Andy Hutchinson wrote (comment #6) that addition a 'movdi' instruction improves the result. I have try to add a very simple 'movdi' (which split into 2 SImode instuctions). In result:

[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.

--- Comment #10 from dmixm at marine dot febras dot ru 2007-07-27 01:24 --- Yes, results are: avr-gcc-3.3.6: O0 --> 75, O1,O2,O3,Os --> 79 avr-gcc-4.2.1: O0 --> 109, O1,O2,O3,Os --> 79 The mistake is corrected? It is possible to tell and so as now applicatio

[Bug target/30289] New: avr-gcc: builtin memset(): wrong code

_scratch:HI 4 "=1,1"))] ... -- Summary: avr-gcc: builtin memset(): wrong code Product: gcc Version: 4.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc

[Bug target/30243] New: avr-gcc 4.1.1: signbit() causes an internal compiler error

Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot ru http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30243

[Bug target/19686] New: avr-gcc 4.0: loop performance decrease (extra conversion)

xm at marine dot febras dot ru CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19686

[Bug target/19684] New: avr-gcc 4.0 (and 3.3.4): wrong size in asm comment

AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot ru CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19684

[Bug rtl-optimization/19597] New: avr-gcc 4.0, multiplication by constant, very long code

: unassigned at gcc dot gnu dot org ReportedBy: dmixm at marine dot febras dot ru CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19597

[Bug middle-end/18424] 3.4.3 ~6x+ performance regression vs 3.3.1, constant trees not being computed.

--- Additional Comments From dmixm at marine dot febras dot ru 2004-11-16 23:58 --- In March, 2004 Richard Sandiford has offered a patch for elimination of this problem. See: http://gcc.gnu.org/ml/gcc/2004-03/msg01456.html This patch modifies function do_jump (a file dojump.c). This