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| author | Richard Biener <rguenther@suse.de> | 2015-01-14 08:32:18 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-01-14 08:32:18 +0000 |
| commit | 46b622cc2466685c60ef40256e49ad1fd8844cf7 (patch) | |
| tree | 3823ea455c765b3f8e0d525a262d120ea5adafc7 | |
| parent | f7d2b51386ac44e68b07a2dac212a70d1bda0b02 (diff) | |
| download | gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.zip gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.tar.gz gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.tar.bz2 | |
re PR tree-optimization/64493 (ICE at -O3 on x86_64-linux-gnu)
2015-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/64493
PR tree-optimization/64495
* tree-vect-loop.c (vect_finalize_reduction): For double-reductions
assign the proper vectorized PHI to the inner loop exit PHIs.
* gcc.dg/vect/pr64493.c: New testcase.
* gcc.dg/vect/pr64495.c: Likewise.
From-SVN: r219579
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr64493.c | 31 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr64495.c | 35 | ||||
| -rw-r--r-- | gcc/tree-vect-loop.c | 5 |
5 files changed, 84 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7a0a9a3..8533538 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2015-01-14 Richard Biener <rguenther@suse.de> + + PR tree-optimization/64493 + PR tree-optimization/64495 + * tree-vect-loop.c (vect_finalize_reduction): For double-reductions + assign the proper vectorized PHI to the inner loop exit PHIs. + 2015-01-14 Joey Ye <joey.ye@arm.com> * config/arm/arm.c (arm_compute_save_reg_mask): diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index c07074b..00dc23f 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2015-01-14 Richard Biener <rguenther@suse.de> + + PR tree-optimization/64493 + PR tree-optimization/64495 + * gcc.dg/vect/pr64493.c: New testcase. + * gcc.dg/vect/pr64495.c: Likewise. + 2015-01-13 Martin Uecker <uecker@eecs.berkeley.edu> * gcc.dg/Warray-bounds-11.c: New test-case. diff --git a/gcc/testsuite/gcc.dg/vect/pr64493.c b/gcc/testsuite/gcc.dg/vect/pr64493.c new file mode 100644 index 0000000..a7dee4d --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr64493.c @@ -0,0 +1,31 @@ +/* { dg-do run } */ + +#include "tree-vect.h" + +int a, b, c, d, e, f, g, h; + +int +main () +{ + check_vect (); + + for (; a; a--) + for (d = 1; d <= 0; d++) + for (; d;) + if (h) + { + if (!g) __builtin_abort (); + if (!0) __builtin_abort (); + } + + for (f = 4; f; f--) + { + for (b = 0; b < 2; b++) + c |= 1; + e |= c; + } + + return 0; +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/testsuite/gcc.dg/vect/pr64495.c b/gcc/testsuite/gcc.dg/vect/pr64495.c new file mode 100644 index 0000000..aad8752 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr64495.c @@ -0,0 +1,35 @@ +/* { dg-do run } */ + +#include <assert.h> +#include "tree-vect.h" + +int a, b, c, d, e, f, g, i, j; +static int *h = &e; + +int +main () +{ + check_vect (); + + for (; a;) + for (; g; g++) + for (; f; f++) + if (j) + { + assert(b); + assert(0); + } + for (i = 24; i; i--) + { + for (c = 0; c < 6; c++) + d |= 1; + *h |= d; + } + + if (e != 1) + __builtin_abort (); + + return 0; +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 670fe9d..fff55df 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -4580,7 +4580,10 @@ vect_finalize_reduction: && !STMT_VINFO_LIVE_P (exit_phi_vinfo)) || double_reduc); - STMT_VINFO_VEC_STMT (exit_phi_vinfo) = epilog_stmt; + if (double_reduc) + STMT_VINFO_VEC_STMT (exit_phi_vinfo) = inner_phi; + else + STMT_VINFO_VEC_STMT (exit_phi_vinfo) = epilog_stmt; if (!double_reduc || STMT_VINFO_DEF_TYPE (exit_phi_vinfo) != vect_double_reduction_def) |