From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c | 64 ++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c (limited to 'gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c') diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c new file mode 100644 index 000000000..b1bed75da --- /dev/null +++ b/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; +} -- cgit v1.2.3