https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63501
Bug ID: 63501
Summary: ICE in GCC powerpc64le top of trunk with
-mupper-regs-df
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: saugustine at google dot com
The enclosed (greatly reduced) test case fails with an internal
compiler error on gcc-4.9 and top of trunk. Works great with x86.
saugustine@saugustine: ~/creduce $ cat test.ii
fn1() {
double fvalue;
switch (0)
case 0:
case 'f':
fmtfp(fvalue);
}
saugustine@saugustine: ~/creduce $
~/gcc-tot/install/libexec/gcc/powerpc64le-linux-gnu/5.0.0/cc1
test.ii -mcpu=power7 -mupper-regs-df -O2
fn1
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <early_local_cleanups>
<free-inline-summary> <whole-program> <profile_estimate> <devirt> <cp>
<inline> <pure-const> <static-var> <single-use> <comdats>Assembling
functions:
fn1
test.ii: In function 'fn1':
test.ii:7:1: error: unrecognizable insn:
}
^
(insn 24 23 25 2 (set (mem/c:DF (plus:DI (reg:DI 9 9)
(const_int 96 [0x60])) [0 S8 A64])
(reg/v:DF 3 3 [orig:155 fvalue ] [155])) test.ii:6 -1
(nil))
test.ii:7:1: internal compiler error: in extract_insn, at recog.c:2206
