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* [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS @ 2008-08-28 23:13 kkojima at gcc dot gnu dot org 2008-08-29 4:46 ` [Bug target/37270] " pinskia at gcc dot gnu dot org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: kkojima at gcc dot gnu dot org @ 2008-08-28 23:13 UTC (permalink / raw) To: gcc-bugs The trunk compiler fails to compile libffi.call/cls_8byte.c with -O2 -fomit-frame-pointer. Here is a reduced test case: typedef struct s8 { int a; float b; } s8; s8 s8_fn (struct s8 a1, struct s8 a2) { struct s8 result; result.b = a1.b + a2.b; bar (a1.a, a1.b, a2.a, a2.b, result.a, result.b); return result; } With -O2 -fomit-frame-pointer, it causes foo.c:15: error: unable to find a register to spill in class 'R0_REGS' foo.c:15: error: this is the insn: (insn:HI 23 44 45 3 foo.c:14 (parallel [ (set (subreg:SF (reg:SI 1 r1 [orig:174 D.1226+4 ] [174]) 0) (reg:SF 163 [ D.1218 ])) (use (reg/v:PSI 151 )) (clobber (scratch:SI)) ]) 205 {movsf_ie} (expr_list:REG_DEAD (reg:SF 163 [ D.1218 ]) (nil))) foo.c:15: internal compiler error: in spill_failure, at reload1.c:2098 -- Summary: [4.4 Regression] SH: spill failure for R0_REGS Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kkojima at gcc dot gnu dot org GCC target triplet: sh4-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37270 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/37270] [4.4 Regression] SH: spill failure for R0_REGS 2008-08-28 23:13 [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS kkojima at gcc dot gnu dot org @ 2008-08-29 4:46 ` pinskia at gcc dot gnu dot org 2008-08-29 5:01 ` kkojima at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-08-29 4:46 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2008-08-29 04:45 ------- Do you know when this started to happen? I almost want to say this is related to IRA. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pinskia at gcc dot gnu dot | |org Keywords| |ra Target Milestone|--- |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37270 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/37270] [4.4 Regression] SH: spill failure for R0_REGS 2008-08-28 23:13 [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS kkojima at gcc dot gnu dot org 2008-08-29 4:46 ` [Bug target/37270] " pinskia at gcc dot gnu dot org @ 2008-08-29 5:01 ` kkojima at gcc dot gnu dot org 2008-08-30 22:26 ` kkojima at gcc dot gnu dot org 2008-08-31 0:29 ` kkojima at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: kkojima at gcc dot gnu dot org @ 2008-08-29 5:01 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from kkojima at gcc dot gnu dot org 2008-08-29 05:00 ------- (In reply to comment #1) It starts to fail at some point between revision 139589 and 139690. I guess that the IRA merge reveals the latent issue of the sh backend. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37270 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/37270] [4.4 Regression] SH: spill failure for R0_REGS 2008-08-28 23:13 [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS kkojima at gcc dot gnu dot org 2008-08-29 4:46 ` [Bug target/37270] " pinskia at gcc dot gnu dot org 2008-08-29 5:01 ` kkojima at gcc dot gnu dot org @ 2008-08-30 22:26 ` kkojima at gcc dot gnu dot org 2008-08-31 0:29 ` kkojima at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: kkojima at gcc dot gnu dot org @ 2008-08-30 22:26 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from kkojima at gcc dot gnu dot org 2008-08-30 22:24 ------- Subject: Bug 37270 Author: kkojima Date: Sat Aug 30 22:23:20 2008 New Revision: 139809 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139809 Log: PR target/37270 * config/sh/sh.h (LEGITIMIZE_RELOAD_ADDRESS): Generate the reload address with the index register for SFmode access with a displacement. Modified: trunk/gcc/ChangeLog trunk/gcc/config/sh/sh.h -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37270 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/37270] [4.4 Regression] SH: spill failure for R0_REGS 2008-08-28 23:13 [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS kkojima at gcc dot gnu dot org ` (2 preceding siblings ...) 2008-08-30 22:26 ` kkojima at gcc dot gnu dot org @ 2008-08-31 0:29 ` kkojima at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: kkojima at gcc dot gnu dot org @ 2008-08-31 0:29 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from kkojima at gcc dot gnu dot org 2008-08-31 00:28 ------- Fixed. -- kkojima at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37270 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2008-08-31 0:29 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-08-28 23:13 [Bug target/37270] New: [4.4 Regression] SH: spill failure for R0_REGS kkojima at gcc dot gnu dot org 2008-08-29 4:46 ` [Bug target/37270] " pinskia at gcc dot gnu dot org 2008-08-29 5:01 ` kkojima at gcc dot gnu dot org 2008-08-30 22:26 ` kkojima at gcc dot gnu dot org 2008-08-31 0:29 ` kkojima at gcc dot gnu dot org
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