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| author | Michael Matz <matz@suse.de> | 2010-06-30 16:34:22 +0000 |
|---|---|---|
| committer | Michael Matz <matz@gcc.gnu.org> | 2010-06-30 16:34:22 +0000 |
| commit | 8a1561bcd07c8e630f1e7492c364a664dd6f3d69 (patch) | |
| tree | 2852023f84692231142ea669a9e5ceed97a70395 /gcc/gimple-fold.c | |
| parent | 6b180c51344c45d4b0b4a792de68b634f4a354cd (diff) | |
| download | gcc-8a1561bcd07c8e630f1e7492c364a664dd6f3d69.zip gcc-8a1561bcd07c8e630f1e7492c364a664dd6f3d69.tar.gz gcc-8a1561bcd07c8e630f1e7492c364a664dd6f3d69.tar.bz2 | |
re PR bootstrap/44699 (Bootstrap failure for x86_64-apple-darwin10: ICE while compiling genmodes.c)
PR bootstrap/44699
* tree-vrp.c (vrp_finalize): Deal with changing num_ssa_names.
* gimple-fold.c (gimplify_and_update_call_from_tree): If LHS is
a gimple reg, attach the original VDEF to the last store in the
sequence.
testsuite/
PR bootstrap/44699
* gcc.dg/pr44699.c: New test.
From-SVN: r161614
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 491611f..a1fc020 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -1133,7 +1133,8 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) if (gimple_vdef (stmt) && laststore) { gimple_set_vdef (laststore, gimple_vdef (stmt)); - move_ssa_defining_stmt_for_defs (laststore, stmt); + if (TREE_CODE (gimple_vdef (stmt)) == SSA_NAME) + SSA_NAME_DEF_STMT (gimple_vdef (stmt)) = laststore; update_stmt (laststore); } else @@ -1150,7 +1151,15 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) gsi_insert_before (si_p, last, GSI_NEW_STMT); gsi_next (si_p); } - if (laststore) + if (laststore && is_gimple_reg (lhs)) + { + gimple_set_vdef (laststore, gimple_vdef (stmt)); + update_stmt (laststore); + if (TREE_CODE (gimple_vdef (stmt)) == SSA_NAME) + SSA_NAME_DEF_STMT (gimple_vdef (stmt)) = laststore; + laststore = NULL; + } + else if (laststore) { reaching_vuse = make_ssa_name (gimple_vop (cfun), laststore); gimple_set_vdef (laststore, reaching_vuse); @@ -1158,9 +1167,14 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) laststore = NULL; } new_stmt = gimple_build_assign (lhs, tmp); - gimple_set_vuse (new_stmt, reaching_vuse); - gimple_set_vdef (new_stmt, gimple_vdef (stmt)); - move_ssa_defining_stmt_for_defs (new_stmt, stmt); + if (!is_gimple_reg (tmp)) + gimple_set_vuse (new_stmt, reaching_vuse); + if (!is_gimple_reg (lhs)) + { + gimple_set_vdef (new_stmt, gimple_vdef (stmt)); + if (TREE_CODE (gimple_vdef (stmt)) == SSA_NAME) + SSA_NAME_DEF_STMT (gimple_vdef (stmt)) = new_stmt; + } } gimple_set_location (new_stmt, gimple_location (stmt)); |