diff options
author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
---|---|---|
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/ssa-ccp-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.dg/tree-ssa/ssa-ccp-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-1.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-1.c new file mode 100644 index 000000000..82f37abc8 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-1.c @@ -0,0 +1,75 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-ccp1" } */ + +extern void link_error (void); + +/* check folding */ + +void test1 (void) +{ + unsigned int l = 3 * 4 - 5 / 2; + if (l != 10) + link_error (); +} + +void test11 (void) +{ + unsigned int l = (((((((3 / 2 + 2) * 4) & 7) ^ 3) % 8) << 2) + 1) >> 2; + if (l != 7) + link_error (); +} + +/* cprop in a basic block */ +void test111 (void) +{ + unsigned int l0 = 3 / 2 + 2; + unsigned int l1 = l0 * 4; + unsigned int l2 = 7; + unsigned int l3 = l1 & l2; + unsigned int l4 = 3; + unsigned int l5 = l3 ^ l4; + unsigned int l6 = 8; + unsigned int l7 = l5 % l6; + unsigned int l8 = 2; + unsigned int l9 = l7 << l8; + unsigned int l10 = l9 + 1; + unsigned int l11 = l10 >> 2; + if (l11 != 7) + link_error (); +} + + +/* cprop after an if statement */ +void test1111 (int p) +{ + int l = 53; + if (p) + { + if ((67 + l - 25) != 95) + link_error (); + } + else + { + if ((93 - l + 25) != 65) + link_error (); + } +} + +/* cprop after a loop */ +void test11111 (int p, int q, int r) +{ + int l = 53; + while (p < r) + { + if ((67 + l - 25) != 95) + link_error (); + p -= q; + } +} + + + +/* There should be not link_error calls, if there is any the + optimization has failed */ +/* { dg-final { scan-tree-dump-times "link_error" 0 "ccp1"} } */ +/* { dg-final { cleanup-tree-dump "ccp1" } } */ |