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Test cases for when casts to bool can be eliminated

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6870 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-06-23 21:48:26 +00:00
parent 031a112747
commit 8186a94e08
1 changed files with 13 additions and 0 deletions
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13
test/Transforms/InstCombine/cast.ll
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@ -68,3 +68,16 @@ short %test10(short %A) {
%c2 = cast uint %c1 to short
ret short %c2
}
bool %test11(ubyte %A, ubyte %B) {
%C = sub ubyte %A, %B
%D = cast ubyte %C to bool ; == setne A, B
ret bool %D
}
bool %test12(ubyte %A) {
%B = add ubyte %A, 255
%C = cast ubyte %B to bool ; === A != 1
ret bool %C
}