diff options
| author | Andrew Pinski <andrew_pinski@playstation.sony.com> | 2009-11-04 18:35:57 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2009-11-04 10:35:57 -0800 |
| commit | 0e159e0f2bfa8b235fef752c8a67d190ec869d15 (patch) | |
| tree | 795d61d4f784b7538bcd75914efd3f4dabf69c68 /gcc | |
| parent | ac3554c568c57f468e8f57e86de4ce2c86d55b62 (diff) | |
| download | gcc-0e159e0f2bfa8b235fef752c8a67d190ec869d15.tar.gz | |
re PR rtl-optimization/41833 (vec_splat followed by vec_splat could be improved)
2009-11-04 Andrew Pinski <andrew_pinski@playstation.sony.com>
Trevor Smigiel <Trevor_Smigiel@playstation.sony.com>
PR rtl-opt/41833
* simplify-rtx.c (simplify_binary_operation_1): Simplify vec_select of
a vec_duplicate.
2009-11-04 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR rtl-opt/41833
* gcc.target/powerpc/altivec-33.c: New testcase.
Co-Authored-By: Trevor Smigiel <Trevor_Smigiel@playstation.sony.com>
From-SVN: r153906
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/altivec-33.c | 16 |
4 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 619e45045b6..d34908043dc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,8 +1,15 @@ +2009-11-04 Andrew Pinski <andrew_pinski@playstation.sony.com> + Trevor Smigiel <Trevor_Smigiel@playstation.sony.com> + + PR rtl-opt/41833 + * simplify-rtx.c (simplify_binary_operation_1): Simplify vec_select of + a vec_duplicate. + 2009-11-04 Richard Guenther <rguenther@suse.de> Rafael Avila de Espindola <espindola@google.com> * gcc.c (process_command): Handle arguments name@offset. - + 2009-11-04 Harsha Jagasia <harsha.jagasia@amd.com> Dwarakanath Rajagopal <dwarak.rajagopal@amd.com> diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 39a791d9890..ee119bcd65c 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -2946,6 +2946,9 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, tmp_op, gen_rtx_PARALLEL (VOIDmode, vec)); return tmp; } + if (GET_CODE (trueop0) == VEC_DUPLICATE + && GET_MODE (XEXP (trueop0, 0)) == mode) + return XEXP (trueop0, 0); } else { diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f11bfa2d9e9..a0e861bc6c5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-11-04 Andrew Pinski <andrew_pinski@playstation.sony.com> + + PR rtl-opt/41833 + * gcc.target/powerpc/altivec-33.c: New testcase. + 2009-11-04 Jason Merrill <jason@redhat.com> PR c++/17365, DR 218 diff --git a/gcc/testsuite/gcc.target/powerpc/altivec-33.c b/gcc/testsuite/gcc.target/powerpc/altivec-33.c new file mode 100644 index 00000000000..c1c935a1c59 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/altivec-33.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target powerpc_altivec_ok } */ +/* { dg-options "-O2 -maltivec" } */ + +/* We should only produce one vspltw as we already splatted the value. */ +/* { dg-final { scan-assembler-times "vspltw" 1 } } */ + +#include <altivec.h> + +vector float f(vector float a) +{ + vector float b = vec_splat (a, 2); + return vec_splat (b, 0); +} + + |