https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100418
Bug ID: 100418
Summary: [12 Regression][gcn] since r12-397 bootstrap fails:
error: unrecognizable insn: in extract_insn, at
recog.c:2770
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: build, ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: ams at gcc dot gnu.org, aoliva at gcc dot gnu.org, doko at
gcc dot gnu.org
Target Milestone: ---
Target: amdgcn-amdhsa
That's for building amdgcn-amdhsa
Works before commit r12-397-gda9e6e63d1ae22e530ec7baf59f6ed028bf05776
(introduce try store by multiple pieces).
Side note: that version does not compile and was fixed by the next
commit r12-398-g5fbe6a8e73b52c6ebc28b9111456226c1cda6472
Namely, the build fails with:
make[4]: Entering directory '$build/amdgcn-amdhsa/libgfortran'
libtool: compile: $build/./gcc/xgcc -B$build/./gcc/
-B$install/amdgcn-amdhsa/bin/ -B$install/amdgcn-amdhsa/lib/ -isystem
$install/amdgcn-amdhsa/include -isystem $install/amdgcn-amdhsa/sys-include
-DHAVE_CONFIG_H -I. -I$src/libgfortran -iquote$src/libgfortran/io
-I$src/libgfortran/../gcc -I$src/libgfortran/../gcc/config -I../.././gcc
-I$src/libgfortran/../libgcc -I../libgcc -I$src/libgfortran/../libbacktrace
-I../libbacktrace -I../libbacktrace -std=gnu11 -Wall -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -Wextra -Wwrite-strings
-Werror=implicit-function-declaration -Werror=vla -fcx-fortran-rules
-ffunction-sections -fdata-sections -g -O2 -MT reshape_generic.lo -MD -MP -MF
.deps/reshape_generic.Tpo -c $src/libgfortran/intrinsics/reshape_generic.c -o
reshape_generic.o
$src/libgfortran/intrinsics/reshape_generic.c: In function 'reshape_internal':
$src/libgfortran/intrinsics/reshape_generic.c:355:1: error: unrecognizable
insn:
355 | }
| ^
(insn 545 544 546 45 (set (reg:DI 829)
(plus:DI (reg:DI 829)
(const_int -32 [0xffffffffffffffe0])))
"$src/libgfortran/intrinsics/reshape_generic.c":186:14 -1
(nil))
during RTL pass: vregs
$src/libgfortran/intrinsics/reshape_generic.c:355:1: internal compiler error:
in extract_insn, at recog.c:2770
