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| author | Andrew Pinski <andrew_pinski@playstation.sony.com> | 2008-09-28 22:48:48 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2008-09-28 15:48:48 -0700 |
| commit | f50d67f64e861c52bef8a7c6d330cee72f4679f9 (patch) | |
| tree | b6ac98bcf3c5bd31e17c4546d4d572075a550624 /gcc/tree-ssa-loop-im.c | |
| parent | 0d5f7a16ebc7931c798d266a2b172c856ef26531 (diff) | |
| download | gcc-f50d67f64e861c52bef8a7c6d330cee72f4679f9.zip gcc-f50d67f64e861c52bef8a7c6d330cee72f4679f9.tar.gz gcc-f50d67f64e861c52bef8a7c6d330cee72f4679f9.tar.bz2 | |
re PR tree-optimization/36891 (ICE with vector division and -ffast-math and LIM)
2008-09-28 Andrew Pinski <andrew_pinski@playstation.sony.com>
Kaushal Kantawala <kaushal_kantawala@playstation.sony.com>
PR tree-opt/36891
* tree-ssa-loop-im.c (rewrite_reciprocal): Set DECL_GIMPLE_REG_P on
the newly created variable.
Create a VECTOR_CST of all 1s for vector types.
2008-09-28 Andrew Pinski <andrew_pinski@playstation.sony.com>
Kaushal Kantawala <kaushal_kantawala@playstation.sony.com>
PR tree-opt/36891
* gcc.dg/torture/pr36891.c: New testcase.
Co-Authored-By: Kaushal Kantawala <Kaushal_Kantawala@playstation.sony.com>
From-SVN: r140738
Diffstat (limited to 'gcc/tree-ssa-loop-im.c')
| -rw-r--r-- | gcc/tree-ssa-loop-im.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c index 527b810..fe7a222 100644 --- a/gcc/tree-ssa-loop-im.c +++ b/gcc/tree-ssa-loop-im.c @@ -763,6 +763,7 @@ rewrite_reciprocal (gimple_stmt_iterator *bsi) { gimple stmt, stmt1, stmt2; tree var, name, lhs, type; + tree real_one; stmt = gsi_stmt (*bsi); lhs = gimple_assign_lhs (stmt); @@ -770,9 +771,24 @@ rewrite_reciprocal (gimple_stmt_iterator *bsi) var = create_tmp_var (type, "reciptmp"); add_referenced_var (var); + DECL_GIMPLE_REG_P (var) = 1; + + /* For vectors, create a VECTOR_CST full of 1's. */ + if (TREE_CODE (type) == VECTOR_TYPE) + { + int i, len; + tree list = NULL_TREE; + real_one = build_real (TREE_TYPE (type), dconst1); + len = TYPE_VECTOR_SUBPARTS (type); + for (i = 0; i < len; i++) + list = tree_cons (NULL, real_one, list); + real_one = build_vector (type, list); + } + else + real_one = build_real (type, dconst1); stmt1 = gimple_build_assign_with_ops (RDIV_EXPR, - var, build_real (type, dconst1), gimple_assign_rhs2 (stmt)); + var, real_one, gimple_assign_rhs2 (stmt)); name = make_ssa_name (var, stmt1); gimple_assign_set_lhs (stmt1, name); |