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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/tree-ssa/20040326-2.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/tree-ssa/20040326-2.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c new file mode 100644 index 000000000..b1bed75da --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c @@ -0,0 +1,64 @@ +/* { dg-options "-O2 -fno-inline-functions" } */ +/* { dg-do run } */ + +/* Gimplification problem exposed by zsh. All the side-effects in + function arguments and in the called expression should happen + before the actual function call. */ +extern void abort (void); +int A; + +typedef void (*fnptr) (void); +fnptr *F; + +void +foo (int x) +{ + if (A == x) + abort (); +} + +void +bar (int x, int y) +{ + if (x == 5 || y != 3) + abort (); +} + +void +boz (void) +{ + abort (); +} + +void +baz (void) +{ + if (*F != boz) + abort (); +} + +fnptr B[2] = { baz, boz }; + +main () +{ + int b, c; + + /* The gimplifier was emitting A++ after the call to foo. */ + A = 5; + foo (A++); + + /* The increment to 'b' and 'c' must happen before the call. However, + the first argument to bar() must be the original value of 'b', while + the second argument must be the new value of 'c'. */ + b = 4; + c = 2; + bar (b++, ++c); + + /* This call via function pointer *F should go to baz, but F should + be incremented before the actual call (i.e., right before the + call F should be pointing to boz). */ + F = &B[0]; + (*F++) (); + + return 0; +} |