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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c new file mode 100644 index 000000000..9a4b618ea --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/sequence-pt-2.c @@ -0,0 +1,46 @@ +/* More sequence point warning tests */ +/* { dg-do compile } */ +/* { dg-options "-Wsequence-point" } */ + +struct s { struct s *nxt; int v; } q; + +int x[10]; + +int foo(int *p) +{ + int i = 0; + + /* Test general-lvalue sequence point warnings */ + (*p) = (*p)++; /* { dg-warning "undefined" "sequence point warning" } */ + p[3] = p[3]++; /* { dg-warning "undefined" "sequence point warning" } */ + p[i] = p[i]++; /* { dg-warning "undefined" "sequence point warning" } */ + x[3] = x[3]++; /* { dg-warning "undefined" "sequence point warning" } */ + q.nxt->nxt->v = q.nxt->nxt->v++; /* { dg-warning "undefined" "sequence point warning" } */ + + /* test expressions that appear elsewhere in the C grammar */ + + { int a = i-i++; (void)a;} /* { dg-warning "undefined" "sequence point warning" } */ + + if ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */ + return i-i++; /* { dg-warning "undefined" "sequence point warning" } */ + + for (i-i++;;) /* { dg-warning "undefined" "sequence point warning" } */ + ; + + for (; (i-i++) != 0; ) /* { dg-warning "undefined" "sequence point warning" } */ + ; + + for (;;i-i++) /* { dg-warning "undefined" "sequence point warning" } */ + ; + + while ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */ + ; + + do {} while ((i-i++) != 0); /* { dg-warning "undefined" "sequence point warning" } */ + + switch (i-i++) { /* { dg-warning "undefined" "sequence point warning" } */ + case 0: return 1; + } + + return 0; +} |