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* [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for:
@ 2024-08-10 11:19 gjl at gcc dot gnu.org
2024-08-10 11:21 ` [Bug rtl-optimization/116325] " gjl at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-08-10 11:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
Bug ID: 116325
Summary: [lra] error: unable to generate reloads for:
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: gjl at gcc dot gnu.org
Target Milestone: ---
Created attachment 58897
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58897&action=edit
pr60040-2.c: GNU-C99 test case from gcc.target/avr
$ avr-gcc pr60040-2.c -mlra -S -Os
/pr60040-2.c:112:1: error: unable to generate reloads for:
112 | }
| ^
(call_insn 44 43 45 3 (parallel [
(set (reg:HI 24 r24)
(call (mem:HI (reg/f:HI 79 [ ops_25(D)->blank ]) [0 *_26 S2
A8])
(const_int 0 [0])))
(use (const_int 0 [0]))
]) "gcc.target/avr/pr60040-2.c":66:10 774 {call_value_insn}
(expr_list:REG_DEAD (reg/f:HI 79 [ ops_25(D)->blank ])
(expr_list:REG_DEAD (reg:SI 20 r20)
(expr_list:REG_DEAD (reg:SI 16 r16)
(expr_list:REG_DEAD (reg:SI 12 r12)
(expr_list:REG_DEAD (reg:SI 8 r8)
(expr_list:REG_UNUSED (reg:HI 24 r24)
(expr_list:REG_CALL_DECL (nil)
(nil))))))))
(expr_list:HI (use (reg:HI 24 r24))
(expr_list:SI (use (reg:SI 20 r20))
(expr_list:SI (use (reg:SI 16 r16))
(expr_list:SI (use (reg:SI 12 r12))
(expr_list:SI (use (reg:SI 8 r8))
(nil)))))))
during RTL pass: reload
gcc.target/avr/pr60040-2.c:112:1: internal compiler error: in
curr_insn_transform, at lra-constraints.cc:4283
The insn in an indirect call, which should use the Z register (reg:HI 30) for
the target address.
Target: avr
Configured with: ../../source/gcc-master/configure --target=avr --disable-nls
--with-dwarf2 --with-gnu-as --with-gnu-ld --disable-shared
--with-long-double=64 --enable-languages=c,c++
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/116325] [lra] error: unable to generate reloads for:
2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
@ 2024-08-10 11:21 ` gjl at gcc dot gnu.org
2024-08-17 13:31 ` gjl at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-08-10 11:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Target| |avr
Status|UNCONFIRMED |NEW
Keywords| |ice-on-valid-code, ra
Blocks| |56183, 113932, 113934
Last reconfirmed| |2024-08-10
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56183
[Bug 56183] [meta-bug][avr] Problems with register allocation
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113932
[Bug 113932] [meta-bug] Targets which should be ported to LRA
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113934
[Bug 113934] Switch avr to LRA
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/116325] [lra] error: unable to generate reloads for:
2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
2024-08-10 11:21 ` [Bug rtl-optimization/116325] " gjl at gcc dot gnu.org
@ 2024-08-17 13:31 ` gjl at gcc dot gnu.org
2024-08-19 15:28 ` gjl at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-08-17 13:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Created attachment 58945
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58945&action=edit
C++ test case from libstdc++v3
This is a test case from libstdc++v3. Compile with
$ avr-g++ pr116389.cpp -S -dumpbase "" -O2 -mmcu=avrtiny -dp
-fdump-rtl-ira-details -fdump-rtl-reload-details -mlra
error: unable to generate reloads for:
(call_insn/j 43 42 44 8 (parallel [
(set (reg:HI 24 r24)
(call (mem:HI (reg/f:HI 45 [ _8 ]) [0
*OBJ_TYPE_REF(_8;this_1(D)->7B) S2 A8])
(const_int 2 [0x2])))
(use (const_int 1 [0x1]))
])
"/ssd1/build/avr/gcc-bug/avr/avrtiny/libstdc++-v3/include/bits/locale_facets.h":917:23
774 {call_value_insn}
(expr_list:REG_DEAD (reg/f:HI 45 [ _8 ])
(expr_list:REG_DEAD (reg:QI 35 argH)
(expr_list:REG_DEAD (reg:HI 22 r22)
(expr_list:REG_DEAD (reg:HI 20 r20)
(expr_list:REG_UNUSED (reg:HI 24 r24)
(expr_list:REG_CALL_DECL (nil)
(nil)))))))
(expr_list:HI (use (reg:HI 24 r24))
(expr_list:HI (use (reg:HI 22 r22))
(expr_list:HI (use (reg:HI 20 r20))
(expr_list:HI (use (mem/f:HI (reg/f:HI 34 argL) [0 S2 A8]))
(nil))))))
during RTL pass: reload
dump file: pr116389.cpp.317r.reload
/ssd1/build/avr/gcc-bug/avr/avrtiny/libstdc++-v3/include/bits/locale_facets.h:918:7:
internal compiler error: in curr_insn_transform, at lra-constraints.cc:4283
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/116325] [lra] error: unable to generate reloads for:
2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
2024-08-10 11:21 ` [Bug rtl-optimization/116325] " gjl at gcc dot gnu.org
2024-08-17 13:31 ` gjl at gcc dot gnu.org
@ 2024-08-19 15:28 ` gjl at gcc dot gnu.org
2024-08-19 15:47 ` [Bug rtl-optimization/116325] [lra] ICE: in curr_insn_transform, at lra-constraints.cc:4283 gjl at gcc dot gnu.org
2024-09-18 9:49 ` gjl at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-08-19 15:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Created attachment 58958
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58958&action=edit
qsort.c. C test case
LRA can't compile qsort.c from libc; same ICE.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/116325] [lra] ICE: in curr_insn_transform, at lra-constraints.cc:4283
2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
` (2 preceding siblings ...)
2024-08-19 15:28 ` gjl at gcc dot gnu.org
@ 2024-08-19 15:47 ` gjl at gcc dot gnu.org
2024-09-18 9:49 ` gjl at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-08-19 15:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
(In reply to Georg-Johann Lay from comment #2)
> Created attachment 58958 [details]
> qsort.c. C test case
>
> LRA can't compile qsort.c from libc; same ICE.
Just compile qsort.c with -mlra (optimizatio level and -mmcu don't seem to
matter).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/116325] [lra] ICE: in curr_insn_transform, at lra-constraints.cc:4283
2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
` (3 preceding siblings ...)
2024-08-19 15:47 ` [Bug rtl-optimization/116325] [lra] ICE: in curr_insn_transform, at lra-constraints.cc:4283 gjl at gcc dot gnu.org
@ 2024-09-18 9:49 ` gjl at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: gjl at gcc dot gnu.org @ 2024-09-18 9:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116325
Georg-Johann Lay <gjl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #4 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Dup of PR116326; at least the patch to resolve PR116326 also resolves the test
cases for this PR.
*** This bug has been marked as a duplicate of bug 116326 ***
^ permalink raw reply [flat|nested] 6+ messages in thread
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2024-08-10 11:19 [Bug rtl-optimization/116325] New: [lra] error: unable to generate reloads for: gjl at gcc dot gnu.org
2024-08-10 11:21 ` [Bug rtl-optimization/116325] " gjl at gcc dot gnu.org
2024-08-17 13:31 ` gjl at gcc dot gnu.org
2024-08-19 15:28 ` gjl at gcc dot gnu.org
2024-08-19 15:47 ` [Bug rtl-optimization/116325] [lra] ICE: in curr_insn_transform, at lra-constraints.cc:4283 gjl at gcc dot gnu.org
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