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author | Chris Lattner <sabre@nondot.org> | 2003-02-18 19:28:47 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2003-02-18 19:28:47 +0000 |
commit | 5640f333313f63ac709e99e57ae455e49ccb8fc6 (patch) | |
tree | 00954d247bebd3724f0e5f1260dea1096597f8a0 /test/Transforms/InstCombine/div.ll | |
parent | a2881961b918c89445666aa564680eb65867610a (diff) | |
download | llvm-5640f333313f63ac709e99e57ae455e49ccb8fc6.tar.gz llvm-5640f333313f63ac709e99e57ae455e49ccb8fc6.tar.bz2 llvm-5640f333313f63ac709e99e57ae455e49ccb8fc6.tar.xz |
test for a variety of new transformations:
* A & ~A == 0
* A / (2^c) == A >> c if unsigned
* 0 / A == 0
* 1.0 * A == A
* A * (2^c) == A << c
* A ^ ~A == -1
* A | ~A == -1
* 0 % X = 0
* A % (2^c) == A & (c-1) if unsigned
* A - (A & B) == A & ~B
* -1 - A == ~A
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5588 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/div.ll')
-rw-r--r-- | test/Transforms/InstCombine/div.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/div.ll b/test/Transforms/InstCombine/div.ll index 10daccf11c..2bcd452c23 100644 --- a/test/Transforms/InstCombine/div.ll +++ b/test/Transforms/InstCombine/div.ll @@ -12,3 +12,13 @@ int %test1(int %A) { %B = div int %A, 1 ret int %B } + +uint %test2(uint %A) { + %B = div uint %A, 8 ; => Shift + ret int %B +} + +int %test3(int %A) { + %B = div int 0, %A ; => 0, don't need to keep traps + ret int %B +} |