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[Bug c/80315] New: Calling __builtin_crypto_vshasigmaw with argument 3 out of range creates an unrecognizable insn
- From: "gcc at svenkoehler dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 04 Apr 2017 16:35:34 +0000
- Subject: [Bug c/80315] New: Calling __builtin_crypto_vshasigmaw with argument 3 out of range creates an unrecognizable insn
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80315
Bug ID: 80315
Summary: Calling __builtin_crypto_vshasigmaw with argument 3
out of range creates an unrecognizable insn
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gcc at svenkoehler dot de
Target Milestone: ---
Created attachment 41126
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41126&action=edit
Intermediate file of the source in question
Using the power8 crypto builtin with an argument 3 out of range 0..15 (thus
more that 4 bits) generates a further unrecognizable instruction:
res = __builtin_crypto_vshasigmaw(test, 1, 0xff);
results in:
breaking_sha.c: In function ‘main’:
breaking_sha.c:14:1: error: unrecognizable insn:
}
^
(insn 10 9 11 2 (set (reg:V4SI 158)
(unspec:V4SI [
(reg:V4SI 159)
(const_int 1 [0x1])
(reg:SI 161)
] UNSPEC_VSHASIGMA)) breaking_sha.c:12 -1
(nil))
breaking_sha.c:14:1: internal compiler error: in extract_insn, at
recog.c:2287
0x1067e9b3 _fatal_insn(char const*, rtx_def const*, char const*, int,
char const*)
../../src/gcc/rtl-error.c:108
0x1067ea17 _fatal_insn_not_found(rtx_def const*, char const*, int, char
const*)
../../src/gcc/rtl-error.c:116
0x10644fe7 extract_insn(rtx_insn*)
../../src/gcc/recog.c:2287
0x10420567 instantiate_virtual_regs_in_insn
../../src/gcc/function.c:1582
0x10420567 instantiate_virtual_regs
../../src/gcc/function.c:1950
0x10420567 execute
../../src/gcc/function.c:1999
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
Trace as of: gcc version 6.2.0 20160901 (Ubuntu 6.2.0-3ubuntu11~16.04)
Likewise with: gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4)