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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/vrp25.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/vrp25.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp25.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp25.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp25.c new file mode 100644 index 000000000..fa8bbfd4c --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp25.c @@ -0,0 +1,52 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp1-details" } */ + +extern void abort (); +int tree_code_length[100]; + +blah (int code1) +{ + unsigned char D18670; + + if (code1 != 53) goto L0; else goto L1; + +L0: + abort (); + +L1: + D18670 = tree_code_length[53]; + if (D18670 <= 1) goto L2; else goto L3; + +L2: + abort (); + +L3: + if (D18670 == 2) goto L4; else goto L5; + +L4: + abort (); + +L5: + arf (); + if (code1 != 53) goto L6; else goto L7; + +L6: + abort (); + +L7: + if (D18670 <= 2) goto L8; else goto L9; + +L8: + abort (); + +L9: + return; + +} + +/* The second test of (code1 != 53) and the test (D18670 <= 2) are + both totally subsumed by earlier tests and thus should be folded + away using VRP. */ +/* { dg-final { scan-tree-dump-times "Folding predicate" 2 "vrp1" } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ + |