diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimplify.c | 23 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/c-c++-common/pr72747-1.c | 16 | ||||
| -rw-r--r-- | gcc/testsuite/c-c++-common/pr72747-2.c | 18 |
5 files changed, 57 insertions, 12 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 223396c..f932103 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-10-28 Will Schmidt <will_schmidt@vnet.ibm.com> + + PR middle-end/72747 + * gimplify.c (gimplify_init_constructor): Move emit of constructor + assignment to earlier in the if/else logic. + 2016-10-28 Richard Biener <rguenther@suse.de> PR middle-end/78128 diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 5da1725..1531582 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -4730,24 +4730,23 @@ gimplify_init_constructor (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p, if (ret == GS_ERROR) return GS_ERROR; - else if (want_value) + /* If we have gimplified both sides of the initializer but have + not emitted an assignment, do so now. */ + if (*expr_p) + { + tree lhs = TREE_OPERAND (*expr_p, 0); + tree rhs = TREE_OPERAND (*expr_p, 1); + gassign *init = gimple_build_assign (lhs, rhs); + gimplify_seq_add_stmt (pre_p, init); + } + if (want_value) { *expr_p = object; return GS_OK; } else { - /* If we have gimplified both sides of the initializer but have - not emitted an assignment, do so now. */ - if (*expr_p) - { - tree lhs = TREE_OPERAND (*expr_p, 0); - tree rhs = TREE_OPERAND (*expr_p, 1); - gassign *init = gimple_build_assign (lhs, rhs); - gimplify_seq_add_stmt (pre_p, init); - *expr_p = NULL; - } - + *expr_p = NULL; return GS_ALL_DONE; } } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a51fcf4..b4d7ec0 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2016-10-26 Will Schmidt <will_schmidt@vnet.ibm.com> + + PR middle-end/72747 + * c-c++-common/pr72747-1.c: New test. + * c-c++-common/pr72747-2.c: Likewise. + 2016-10-28 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * gcc.target/s390/oscbreak-1.c: New test. diff --git a/gcc/testsuite/c-c++-common/pr72747-1.c b/gcc/testsuite/c-c++-common/pr72747-1.c new file mode 100644 index 0000000..e87069d --- /dev/null +++ b/gcc/testsuite/c-c++-common/pr72747-1.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target powerpc_altivec_ok } */ +/* { dg-options "-maltivec -fdump-tree-gimple" } */ + +/* PR 72747: Test that cascaded definition is happening for constant vectors. */ + +#include <altivec.h> + +int main (int argc, char *argv[]) +{ + __vector int v1,v2; + v1 = v2 = vec_splats ((int) 42); + return 0; +} +/* { dg-final { scan-tree-dump-times " v2 = { 42, 42, 42, 42 }" 1 "gimple" } } */ + diff --git a/gcc/testsuite/c-c++-common/pr72747-2.c b/gcc/testsuite/c-c++-common/pr72747-2.c new file mode 100644 index 0000000..080d6fc --- /dev/null +++ b/gcc/testsuite/c-c++-common/pr72747-2.c @@ -0,0 +1,18 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target powerpc_altivec_ok } */ +/* { dg-options "-c -maltivec -fdump-tree-gimple" } */ + +/* PR 72747: test that cascaded definition is happening for non constants. */ + +void foo () +{ + extern int i; + __vector int v,w; + v = w = (vector int) { i }; +} + +int main (int argc, char *argv[]) +{ + return 0; +} +/* { dg-final { scan-tree-dump-times " w = {i.0_1}" 1 "gimple" } } */ |