[Bug middle-end/48493] [ICE] [ARM] in expand_expr_addr_expr_1, at expr.c

["mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48493

--- Comment #8 from Mikael Pettersson <mikpe at it dot uu.se> 2011-06-24 09:59:58 UTC ---
I've now bootstrapped and regtested the patch in #c5 on top of gcc-4.6-20110610
on an armv5tel-linux-gnueabi machine.  (I couldn't get it to apply to trunk.) 
There were no build problems, it solved the test case, but there were a few
testsuite regressions:

+FAIL: gcc.dg/vect/nodump-pr23073.c (internal compiler error)
+FAIL: gcc.dg/vect/nodump-pr23073.c (test for excess errors)

/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/nodump-pr23073.c: In
function 'C':
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/nodump-pr23073.c:19:1:
error: unrecognizable insn:
(insn 7 6 8 3 (set (mem/s/c:BLK (reg/f:SI 134) [3 d+0 S16 A32])
        (unspec:V2SI [
                (reg:V2SI 135)
            ] 205))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/nodump-pr23073.c:16 -1
     (nil))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/nodump-pr23073.c:19:1:
internal compiler error: in extract_insn, at recog.c:2109

+FAIL: gcc.dg/vect/vect-34.c (internal compiler error)
+FAIL: gcc.dg/vect/vect-34.c (test for excess errors)

/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/vect-34.c: In function
'main1':
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/vect-34.c:31:1: error:
unrecognizable insn:
(insn 41 40 42 3 (set (mem/s/c:BLK (reg/f:SI 173) [3 s+0 S16 A32])
        (unspec:V8QI [
                (reg:V8QI 175)
            ] 205))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/vect-34.c:20 -1
     (nil))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/vect-34.c:31:1:
internal compiler error: in extract_insn, at recog.c:2109

+FAIL: gcc.dg/vect/bb-slp-10.c (internal compiler error)
+FAIL: gcc.dg/vect/bb-slp-10.c (test for excess errors)

/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/bb-slp-10.c: In
function 'main1':
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/bb-slp-10.c:41:1:
error: unrecognizable insn:
(insn 24 23 25 3 (set (mem/s/c:BLK (reg/f:SI 168) [2 out+0 S64 A64])
        (unspec:V2SI [
                (reg:V2SI 174)
            ] 205))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/bb-slp-10.c:28 -1
     (nil))
/mnt/scratch/gcc-4.6-20110610/gcc/testsuite/gcc.dg/vect/bb-slp-10.c:41:1:
internal compiler error: in extract_insn, at recog.c:2109

+FAIL: gcc.target/arm/frame-pointer-1.c execution test

The runtime test in foo() fails because p4 is 0xdeadbeef rather than 4.