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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20030405-1.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20030405-1.c')
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diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20030405-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/20030405-1.c
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index 000000000..0bdafb923
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@@ -0,0 +1,30 @@
+/* When compiled with -pedantic, this program will cause an ICE when the
+ constant propagator tries to set the value of *str to UNDEFINED.
+
+ This happens because *str is erroneously considered as a store alias.
+ The aliasing code is then making *str an alias leader for its alias set
+ and when the PHI node at the end of the while() is visited the first
+ time, CCP will try to assign it a value of UNDEFINED, but the default
+ value for *str is a constant. */
+typedef __SIZE_TYPE__ size_t;
+size_t strlength (const char * const);
+char foo();
+
+static const char * const str = "mingo";
+
+bar()
+{
+ size_t c;
+ char *x;
+
+ c = strlength (str);
+ while (c < 10)
+ {
+ if (c > 5)
+ *x = foo ();
+ if (*x < 'a')
+ break;
+ }
+
+ return *x == '3';
+}