[PATCH] [testsuite] Remove undefined behavior from gcc.dg/tree-ssa/pr44306.c

[Aldy Hernandez <aldyh@redhat.com>]

In auditing the DOM code to see what the scoped tables catch that
ranger doesn't, I've run accross this test, which seems to
have uninitialized reads from both j and present[].

From the original PR, it looks like this came from a reduction of a
failing test in SPEC's 464.h264ref.  A google search of the
CalculateQuant8Param() in the test yields:

https://github.com/microsoft/test-suite/blob/master/MultiSource/Applications/JM/lencod/q_matrix.c

Assuming the above source is similar to the original testcase, it looks
like both "j" and "present" were initialized before use, so our testcase
just got reduced a bit too far.

I tried to build the offending commit to see if my adjustments to the
test still caused it to fail:

commit e1449456c0a88f5b3122db5452f7e91f5a9535f6 (HEAD -> master)
Author: Sebastian Pop <sebastian.pop@amd.com>
Date:   Wed May 26 16:46:59 2010 +0000

    Reorganize the analysis of basic block predication.

...but alas it no longer builds with a recent compiler.  Perhaps
someone has a ./cc1 of that revision around to verify?

OK?

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/pr44306.c: Remove undefined behavior.
---
 gcc/testsuite/gcc.dg/tree-ssa/pr44306.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr44306.c b/gcc/testsuite/gcc.dg/tree-ssa/pr44306.c
index 1ea04ce3a98..d322fe048b5 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pr44306.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr44306.c
@@ -8,10 +8,10 @@ int LevelScale8x8Luma_Inter[6][8][8];
 int InvLevelScale8x8Luma_Intra[6][8][8];
 int InvLevelScale8x8Luma_Inter[6][8][8];
 short UseDefaultScalingMatrix8x8Flag[2];
-void CalculateQuant8Param()
+int present[2];
+void CalculateQuant8Param(int j)
 {
- int i, j, k, temp;
- int present[2];
+ int i, k, temp;
  for(k=0; j<8; j++)
    for(i=0; i<8; i++)
      {
-- 
2.41.0