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| author | Duncan Sands <baldrick@free.fr> | 2011-03-08 12:39:03 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2011-03-08 12:39:03 +0000 |
| commit | 606199fb85d1c8407615e575b5e8bb5c71be27bd (patch) | |
| tree | 54f37c7c89cf76912f9dc229854ca77ca4bed090 /test | |
| parent | c61ac5120ddb5b58693aff42d43cc8e23b7bd0c2 (diff) | |
| download | llvm-606199fb85d1c8407615e575b5e8bb5c71be27bd.tar.gz llvm-606199fb85d1c8407615e575b5e8bb5c71be27bd.tar.bz2 llvm-606199fb85d1c8407615e575b5e8bb5c71be27bd.tar.xz | |
Fix PR9331. Simplified version of a patch by Jakub Staszak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127243 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/JumpThreading/pr9331.ll | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/Transforms/JumpThreading/pr9331.ll b/test/Transforms/JumpThreading/pr9331.ll new file mode 100644 index 0000000000..4c06d526ca --- /dev/null +++ b/test/Transforms/JumpThreading/pr9331.ll @@ -0,0 +1,50 @@ +; RUN: opt -jump-threading -S < %s + +define void @func(i8 zeroext %p_44) nounwind { +entry: + br i1 false, label %for.cond2, label %if.end50 + +for.cond2: ; preds = %for.inc46, %lor.end, %entry + %p_44.addr.1 = phi i8 [ %p_44.addr.1, %lor.end ], [ %p_44, %entry ], [ %p_44.addr.1, %for.inc46 ] + br i1 undef, label %for.inc46, label %for.body5 + +for.body5: ; preds = %for.cond2 + br i1 undef, label %lbl_465, label %if.then9 + +if.then9: ; preds = %for.body5 + br label %return + +lbl_465: ; preds = %lbl_465, %for.body5 + %tobool19 = icmp eq i8 undef, 0 + br i1 %tobool19, label %if.end21, label %lbl_465 + +if.end21: ; preds = %lbl_465 + %conv23 = zext i8 %p_44.addr.1 to i64 + %xor = xor i64 %conv23, 1 + %tobool.i = icmp eq i64 %conv23, 0 + br i1 %tobool.i, label %cond.false.i, label %safe_mod_func_uint64_t_u_u.exit + +cond.false.i: ; preds = %if.end21 + %div.i = udiv i64 %xor, %conv23 + br label %safe_mod_func_uint64_t_u_u.exit + +safe_mod_func_uint64_t_u_u.exit: ; preds = %cond.false.i, %if.end21 + %cond.i = phi i64 [ %div.i, %cond.false.i ], [ %conv23, %if.end21 ] + %tobool28 = icmp eq i64 %cond.i, 0 + br i1 %tobool28, label %lor.rhs, label %lor.end + +lor.rhs: ; preds = %safe_mod_func_uint64_t_u_u.exit + br label %lor.end + +lor.end: ; preds = %lor.rhs, %safe_mod_func_uint64_t_u_u.exit + br label %for.cond2 + +for.inc46: ; preds = %for.cond2 + br label %for.cond2 + +if.end50: ; preds = %entry + br label %return + +return: ; preds = %if.end50, %if.then9 + ret void +} |