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| author | Richard Biener <rguenther@suse.de> | 2016-10-17 13:46:34 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-10-17 13:46:34 +0000 |
| commit | 44b00dbca0929cbed83b1f326b5f96e3d0bc3f2d (patch) | |
| tree | 2c637f6cf644ed9611b82e77b291cd861881aaaf /gcc/tree-vrp.c | |
| parent | a9260b7eb688df43a724e25421ba40f35a89fee9 (diff) | |
| download | gcc-44b00dbca0929cbed83b1f326b5f96e3d0bc3f2d.zip gcc-44b00dbca0929cbed83b1f326b5f96e3d0bc3f2d.tar.gz gcc-44b00dbca0929cbed83b1f326b5f96e3d0bc3f2d.tar.bz2 | |
re PR tree-optimization/77988 (ICE on valid code at -Os and above on x86_64-linux-gnu: verify_gimple failed)
2016-10-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/77988
* tree-vrp.c (remove_range_assertions): Use replace_uses_by.
* gcc.dg/torture/pr77988.c: New testcase.
From-SVN: r241242
Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 00a08fd..1aebc72 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -6882,7 +6882,6 @@ remove_range_assertions (void) for (si = gsi_after_labels (bb), is_unreachable = -1; !gsi_end_p (si);) { gimple *stmt = gsi_stmt (si); - gimple *use_stmt; if (is_gimple_assign (stmt) && gimple_assign_rhs_code (stmt) == ASSERT_EXPR) @@ -6890,8 +6889,6 @@ remove_range_assertions (void) tree lhs = gimple_assign_lhs (stmt); tree rhs = gimple_assign_rhs1 (stmt); tree var; - use_operand_p use_p; - imm_use_iterator iter; var = ASSERT_EXPR_VAR (rhs); @@ -6927,12 +6924,7 @@ remove_range_assertions (void) } /* Propagate the RHS into every use of the LHS. */ - FOR_EACH_IMM_USE_STMT (use_stmt, iter, lhs) - { - FOR_EACH_IMM_USE_ON_STMT (use_p, iter) - SET_USE (use_p, var); - update_stmt (use_stmt); - } + replace_uses_by (lhs, var); /* And finally, remove the copy, it is not needed. */ gsi_remove (&si, true); |