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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.target/avr/torture/pr51782-1.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.target/avr/torture/pr51782-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr51782-1.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr51782-1.c b/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr51782-1.c new file mode 100644 index 000000000..ff0f9d45f --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr51782-1.c @@ -0,0 +1,51 @@ +/* PR middle-end/51782 */ +/* { dg-do run } */ +/* { dg-options { "-std=gnu99" } } */ + +#include <stdlib.h> + +struct R { char r; }; +struct RGB { char r,g,b; }; + +__flash const struct R r1 = { 12 }; +__flash const struct RGB r3 = { 23, 56, 78 }; + +char __attribute__((noinline,noclone)) +read1_bug (const __flash struct R *s) +{ + struct R t = *s; + return t.r; +} + +char __attribute__((noinline,noclone)) +read1_ok (const __flash struct R *s) +{ + return s->r; +} + +char __attribute__((noinline,noclone)) +read3_bug (const __flash struct RGB *s) +{ + struct RGB t = *s; + return t.r + t.g + t.b; +} + +char __attribute__((noinline,noclone)) +read3_ok (const __flash struct RGB *s) +{ + return s->r + s->g + s->b; +} + +__flash const struct R * volatile p1 = &r1; +__flash const struct RGB * volatile p3 = &r3; + +int main (void) +{ + if (read1_bug (p1) != read1_ok (p1)) + abort(); + + if (read3_bug (p3) != read3_ok (p3)) + abort(); + + exit (0); +} |