https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84240
Bug ID: 84240
Summary: Error in extract_constrain_insn, at recog.c:2246
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: xvl5190 at psu dot edu
Target Milestone: ---
Building modified tests by turning on the optimizations. Get internal errors:
gcc -w -O1 asm-flag-6.c_0.1.c
asm-flag-6.c_0.1.c: In function ‘TestP’:
asm-flag-6.c_0.1.c:5:2: error: unrecognizable insn:
__asm__ ("addb $1, %1" : "=@ccnp"(r), "+r"(res)); if (r) return 1; } return
0; } char TestS () { char r, res = 1; /* sign bit set.
^
(insn 13 12 16 3 (parallel [
(set (reg:QI 0 ax [orig:96 r ] [96])
(asm_operands:QI ("addb $1, %1") ("=@ccnp") 0 [
(reg:QI 1 dx [orig:97 res ] [97])
]
[
(asm_input:QI ("1") asm-flag-6.c_0.1.c:5)
]
[] asm-flag-6.c_0.1.c:5))
(set (reg:QI 1 dx [orig:97 res ] [97])
(asm_operands:QI ("addb $1, %1") ("=r") 1 [
(reg:QI 1 dx [orig:97 res ] [97])
]
[
(asm_input:QI ("1") asm-flag-6.c_0.1.c:5)
]
[] asm-flag-6.c_0.1.c:5))
(clobber (reg:QI 18 fpsr))
(clobber (reg:QI 17 flags))
]) asm-flag-6.c_0.1.c:5 -1
(nil))
asm-flag-6.c_0.1.c:5:2: internal compiler error: in extract_constrain_insn, at
recog.c:2246
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions.
