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* [Bug target/59780] New: ICE in aarch64_split_128bit_move
@ 2014-01-12 19:55 vries at gcc dot gnu.org
2014-01-16 17:36 ` [Bug target/59780] " rearnsha at gcc dot gnu.org
2014-01-16 17:49 ` rearnsha at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: vries at gcc dot gnu.org @ 2014-01-12 19:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59780
Bug ID: 59780
Summary: ICE in aarch64_split_128bit_move
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
when building r206565 with target aarch64-linux-gnu I run into several ICEs
like this:
...
/home/vries/gcc_versions/devel/src/libgcc/soft-fp/negtf2.c: In function
‘__negtf2’:
/home/vries/gcc_versions/devel/src/libgcc/soft-fp/negtf2.c:46:1: internal
compiler error: RTL check: expected code 'reg', have 'const_int' in rhs_regno,
at rtl.h:1125
}
^
0xbde5de rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int,
char const*)
/home/vries/gcc_versions/devel/src/gcc/rtl.c:773
0xfe4c1d rhs_regno
/home/vries/gcc_versions/devel/src/gcc/rtl.h:1125
0xfe62a1 aarch64_split_128bit_move(rtx_def*, rtx_def*)
/home/vries/gcc_versions/devel/src/gcc/config/aarch64/aarch64.c:688
0x1048a60 gen_split_2245(rtx_def*, rtx_def**)
/home/vries/gcc_versions/devel/src/gcc/config/aarch64/aarch64.md:752
b0x13fc389 split_1
/home/vries/gcc_versions/devel/src/gcc/config/aarch64/aarch64.md:751
0x1475285 split_insns(rtx_def*, rtx_def*)
/home/vries/gcc_versions/devel/src/gcc/config/aarch64/aarch64.md:352
0x7ec8f6 try_split(rtx_def*, rtx_def*, int)
/home/vries/gcc_versions/devel/src/gcc/emit-rtl.c:3471
0xb535ea split_insn
/home/vries/gcc_versions/devel/src/gcc/recog.c:2850
0xb545f2 split_all_insns()
/home/vries/gcc_versions/devel/src/gcc/recog.c:2940
0xb573f6 rest_of_handle_split_after_reload
/home/vries/gcc_versions/devel/src/gcc/recog.c:3889
0xb57440 execute
/home/vries/gcc_versions/devel/src/gcc/recog.c:3918
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
...
Investigating one of them shows:
...
(gdb) down
#6 0x0000000000fe62a2 in aarch64_split_128bit_move (dst=0x7ffff66fa0e0,
src=0x7ffff687c470)
at /home/vries/gcc_versions/devel/src/gcc/config/aarch64/aarch64.c:688
688 int src_regno = REGNO (src);
(gdb) call debug_rtx (src)
(const_int 0 [0])
(gdb) call debug_rtx (dst)
(reg/v:TI 2 x2 [orig:80 _flo ] [80])
...
...
void
aarch64_split_128bit_move (rtx dst, rtx src)
{
rtx low_dst;
enum machine_mode src_mode = GET_MODE (src);
enum machine_mode dst_mode = GET_MODE (dst);
int src_regno = REGNO (src);
int dst_regno = REGNO (dst);
...
We're doing REGNO (src) while src == (const_int 0).
>From gcc-bugs-return-440151-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Jan 12 20:14:48 2014
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From: "vries at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/59780] ICE in aarch64_split_128bit_move
Date: Sun, 12 Jan 2014 20:14:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY780
--- Comment #1 from vries at gcc dot gnu.org ---
I'm using this as workaround for the moment:
...
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 3b1f6b5..2c75c1c 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -685,7 +685,7 @@ aarch64_split_128bit_move (rtx dst, rtx src)
enum machine_mode src_mode = GET_MODE (src);
enum machine_mode dst_mode = GET_MODE (dst);
- int src_regno = REGNO (src);
+ int src_regno;
int dst_regno = REGNO (dst);
gcc_assert (dst_mode == TImode || dst_mode == TFmode);
@@ -693,6 +693,7 @@ aarch64_split_128bit_move (rtx dst, rtx src)
if (REG_P (dst) && REG_P (src))
{
gcc_assert (src_mode == TImode || src_mode == TFmode);
+ src_regno = REGNO (src);
/* Handle r -> w, w -> r. */
if (FP_REGNUM_P (dst_regno) && GP_REGNUM_P (src_regno))
@@ -754,6 +755,7 @@ aarch64_split_128bit_move (rtx dst, rtx src)
}
return;
case TFmode:
+ src_regno = REGNO (src);
emit_move_insn (gen_rtx_REG (DFmode, dst_regno),
gen_rtx_REG (DFmode, src_regno));
emit_move_insn (gen_rtx_REG (DFmode, dst_regno + 1),
...
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-01-16 17:49 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2014-01-12 19:55 [Bug target/59780] New: ICE in aarch64_split_128bit_move vries at gcc dot gnu.org
2014-01-16 17:36 ` [Bug target/59780] " rearnsha at gcc dot gnu.org
2014-01-16 17:49 ` rearnsha at gcc dot gnu.org
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