Approved and committed: Committed r24248 //Claudiu
> -----Original Message----- > From: Andrew Burgess [mailto:andrew.burg...@embecosm.com] > Sent: Saturday, April 30, 2016 12:17 AM > To: Claudiu Zissulescu <claudiu.zissule...@synopsys.com>; Joern Wolfgang > Rennecke <g...@amylaar.uk> > Cc: gcc-patches@gcc.gnu.org; noa...@mellanox.com > Subject: Re: [PATCHv2 0/7] ARC: Add support for nps400 variant > > * Claudiu Zissulescu <claudiu.zissule...@synopsys.com> [2016-04-29 > 09:03:53 +0000]: > > > I see the next tests failing: > > > > FAIL: gcc.target/arc/movb-1.c scan-assembler movb[ \t]+r[0-5]+, *r[0-5]+, > *r[0-5]+, *19, *21, *8 > > FAIL: gcc.target/arc/movb-2.c scan-assembler movb[ \t]+r[0-5]+, *r[0-5]+, > *r[0-5]+, *23, *23, *9 > > FAIL: gcc.target/arc/movb-5.c scan-assembler movb[ \t]+r[0-5]+, *r[0-5]+, > *r[0-5]+, *23, *(23|7), *9 > > FAIL: gcc.target/arc/movh_cl-1.c scan-assembler movh.cl r[0- > 9]+,0xc0000000>>16 > > Claudiu, Joern, > > I believe that the patch below should resolve the issues that you're > seeing for little endian arc tests. > > It's mostly just updating the expected results, though one test needed > improving for l/e arc. > > In the final test the layout used for bitfields within a struct on > little endian arc just happened to result in a movb (move bits) not > being generated when it could / should have been. I've added a new > peephole2 case to catch this. > > Thanks, > Andrew > > --- > > gcc/arc: New peephole2 and little endian arc test fixes > > Resolve some test failures introduced for little endian arc as a result > of the recent arc/nps400 additions. > > There's a new peephole2 optimisation to merge together two zero_extracts > in order that the movb instruction can be used. > > One of the test cases is extended so that the test does something > meaningful in both big and little endian arc mode. > > Other tests have their expected results updated to reflect improvements > in other areas of GCC. > > gcc/ChangeLog: > > * config/arc/arc.md (movb peephole2): New peephole2 to merge > two > zero_extract operations to allow a movb to occur. > > gcc/testsuite/ChangeLog: > > * gcc.target/arc/movb-1.c: Update little endian arc results. > * gcc.target/arc/movb-2.c: Likewise. > * gcc.target/arc/movb-5.c: Likewise. > * gcc.target/arc/movh_cl-1.c: Extend test to cover little endian > arc. > --- > gcc/ChangeLog | 5 +++++ > gcc/config/arc/arc.md | 14 ++++++++++++++ > gcc/testsuite/ChangeLog | 8 ++++++++ > gcc/testsuite/gcc.target/arc/movb-1.c | 2 +- > gcc/testsuite/gcc.target/arc/movb-2.c | 2 +- > gcc/testsuite/gcc.target/arc/movb-5.c | 2 +- > gcc/testsuite/gcc.target/arc/movh_cl-1.c | 11 +++++++++++ > 7 files changed, 41 insertions(+), 3 deletions(-) > > diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md > index c61107f..0b92594 100644 > --- a/gcc/config/arc/arc.md > +++ b/gcc/config/arc/arc.md > @@ -6144,6 +6144,20 @@ > (zero_extract:SI (match_dup 1) (match_dup 5) (match_dup > 7)))]) > (match_dup 1)]) > > +(define_peephole2 > + [(set (match_operand:SI 0 "register_operand" "") > + (zero_extract:SI (match_dup 0) > + (match_operand:SI 1 "const_int_operand" "") > + (match_operand:SI 2 "const_int_operand" ""))) > + (set (zero_extract:SI (match_operand:SI 3 "register_operand" "") > + (match_dup 1) > + (match_dup 2)) > + (match_dup 0))] > + "TARGET_NPS_BITOPS > + && !reg_overlap_mentioned_p (operands[0], operands[3])" > + [(set (zero_extract:SI (match_dup 3) (match_dup 1) (match_dup 2)) > + (zero_extract:SI (match_dup 0) (match_dup 1) (match_dup 2)))]) > + > ;; include the arc-FPX instructions > (include "fpx.md") > > diff --git a/gcc/testsuite/gcc.target/arc/movb-1.c > b/gcc/testsuite/gcc.target/arc/movb-1.c > index 65d4ba4..94d9f5f 100644 > --- a/gcc/testsuite/gcc.target/arc/movb-1.c > +++ b/gcc/testsuite/gcc.target/arc/movb-1.c > @@ -10,4 +10,4 @@ f (void) > bar.b = foo.b; > } > /* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *5, *3, *8" { target arceb-*-* } } } */ > -/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *19, *21, *8" { target arc-*-* } } } */ > +/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *3, *5, *8" { target arc-*-* } } } */ > diff --git a/gcc/testsuite/gcc.target/arc/movb-2.c > b/gcc/testsuite/gcc.target/arc/movb-2.c > index 1ba9976..708f393 100644 > --- a/gcc/testsuite/gcc.target/arc/movb-2.c > +++ b/gcc/testsuite/gcc.target/arc/movb-2.c > @@ -9,5 +9,5 @@ f (void) > { > bar.b = foo.b; > } > -/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *23, *23, *9" { target arc-*-* } } } */ > +/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *7, *7, *9" { target arc-*-* } } } */ > /* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *0, *0, *9" { target arceb-*-* } } } */ > diff --git a/gcc/testsuite/gcc.target/arc/movb-5.c > b/gcc/testsuite/gcc.target/arc/movb-5.c > index 9dbe8a1..d285888 100644 > --- a/gcc/testsuite/gcc.target/arc/movb-5.c > +++ b/gcc/testsuite/gcc.target/arc/movb-5.c > @@ -9,5 +9,5 @@ f (void) > { > bar.b = foo.b; > } > -/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *23, *(23|7), *9" { target arc-*-* } } } */ > +/* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *7, *7, *9" { target arc-*-* } } } */ > /* { dg-final { scan-assembler "movb\[ \t\]+r\[0-5\]+, *r\[0-5\]+, > *r\[0-5\]+, > *0, *0, *9" { target arceb-*-* } } } */ > diff --git a/gcc/testsuite/gcc.target/arc/movh_cl-1.c > b/gcc/testsuite/gcc.target/arc/movh_cl-1.c > index 220cd9d..c643481 100644 > --- a/gcc/testsuite/gcc.target/arc/movh_cl-1.c > +++ b/gcc/testsuite/gcc.target/arc/movh_cl-1.c > @@ -10,6 +10,9 @@ struct thing > { > unsigned a : 1; > unsigned b : 1; > + unsigned c : 28; > + unsigned d : 1; > + unsigned e : 1; > }; > }; > }; > @@ -24,4 +27,12 @@ blah () > func (xx.raw); > } > > +void > +woof () > +{ > + struct thing xx; > + xx.d = xx.e = 1; > + func (xx.raw); > +} > + > /* { dg-final { scan-assembler "movh\.cl r\[0-9\]+,0xc0000000>>16" } } */ > -- > 2.6.4
