diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-06 08:47:32 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-06 08:47:32 +0100 |
| commit | 8fec4d222f0a35925bfdc4641612120b06d51c59 (patch) | |
| tree | 952e2f159dfca22d9d68337bfb8c144769897cce | |
| parent | dba9c1fd276c07cd6a7cd432d71140931fa44c83 (diff) | |
| download | gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.zip gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.tar.gz gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.tar.bz2 | |
re PR rtl-optimization/83682 (ICE in simplify_subreg, at simplify-rtx.c:6296)
PR rtl-optimization/83682
* rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
if it has non-VECTOR_MODE element mode.
(vec_duplicate_p): Likewise.
* gcc.target/i386/pr83682.c: New test.
From-SVN: r256308
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/rtl.h | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr83682.c | 17 |
4 files changed, 32 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 51f92bc..283f792 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2018-01-06 Jakub Jelinek <jakub@redhat.com> + PR rtl-optimization/83682 + * rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE + if it has non-VECTOR_MODE element mode. + (vec_duplicate_p): Likewise. + PR middle-end/83694 * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT. @@ -2969,7 +2969,9 @@ const_vec_duplicate_p (T x, T *elt) *elt = CONST_VECTOR_ENCODED_ELT (x, 0); return true; } - if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == VEC_DUPLICATE) + if (GET_CODE (x) == CONST + && GET_CODE (XEXP (x, 0)) == VEC_DUPLICATE + && !VECTOR_MODE_P (GET_MODE (XEXP (XEXP (x, 0), 0)))) { *elt = XEXP (XEXP (x, 0), 0); return true; @@ -2984,7 +2986,8 @@ template <typename T> inline bool vec_duplicate_p (T x, T *elt) { - if (GET_CODE (x) == VEC_DUPLICATE) + if (GET_CODE (x) == VEC_DUPLICATE + && !VECTOR_MODE_P (GET_MODE (XEXP (x, 0)))) { *elt = XEXP (x, 0); return true; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1d3603a..7ebe129 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-01-06 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/83682 + * gcc.target/i386/pr83682.c: New test. + 2018-01-05 Janne Blomqvist <jb@gcc.gnu.org> PR fortran/78534 diff --git a/gcc/testsuite/gcc.target/i386/pr83682.c b/gcc/testsuite/gcc.target/i386/pr83682.c new file mode 100644 index 0000000..cbb61ff --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr83682.c @@ -0,0 +1,17 @@ +/* PR rtl-optimization/83682 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -msse2" } */ + +typedef float V __attribute__((__vector_size__(16))); +typedef double W __attribute__((__vector_size__(16))); +V b; +W c; + +void +foo (void *p) +{ + V e = __builtin_ia32_cvtsd2ss (b, c); + V g = e; + float f = g[0]; + __builtin_memcpy (p, &f, sizeof (f)); +} |