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| author | Alexandre Oliva <aoliva@redhat.com> | 2010-01-09 14:40:59 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2010-01-09 14:40:59 +0000 |
| commit | 5de8da9b685658bc6132ef052ecbd06fe7163128 (patch) | |
| tree | 49595835261873911612415bb60c38eb029e5e77 /gcc/tree-cfg.c | |
| parent | 684f25f432c571fc5d2dfd03a3c3389a801b75bc (diff) | |
| download | gcc-5de8da9b685658bc6132ef052ecbd06fe7163128.zip gcc-5de8da9b685658bc6132ef052ecbd06fe7163128.tar.gz gcc-5de8da9b685658bc6132ef052ecbd06fe7163128.tar.bz2 | |
re PR middle-end/42363 (ICE: verify_flow_info failed for gcc.c-torture/compile/pr37913.c -O1 -g)
gcc/ChangeLog:
PR middle-end/42363
* gimplify.c (gimplify_modify_expr): Drop lhs on noreturn calls.
* tree-cfg.c (is_ctrl_altering_stmt): Don't compute flags twice.
(verify_gimple_call): Reject LHS in noreturn calls.
gcc/testsuite/ChangeLog:
PR middle-end/42363
* gcc.dg/torture/pr42363.c: New.
From-SVN: r155762
Diffstat (limited to 'gcc/tree-cfg.c')
| -rw-r--r-- | gcc/tree-cfg.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index 36e518c..b6e9006 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -2230,7 +2230,7 @@ is_ctrl_altering_stmt (gimple t) return true; /* A call also alters control flow if it does not return. */ - if (gimple_call_flags (t) & ECF_NORETURN) + if (flags & ECF_NORETURN) return true; } break; @@ -2963,6 +2963,12 @@ verify_gimple_call (gimple stmt) return true; } + if (gimple_call_lhs (stmt) && gimple_call_noreturn_p (stmt)) + { + error ("LHS in noreturn call"); + return true; + } + fntype = TREE_TYPE (TREE_TYPE (fn)); if (gimple_call_lhs (stmt) && !useless_type_conversion_p (TREE_TYPE (gimple_call_lhs (stmt)), |