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Chris Lattner75d14122004-01-13 05:32:27 +00001; This test checks to make sure that constant exprs fold in some simple situations
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Chris Lattner63540f52006-01-05 07:46:46 +00003; RUN: llvm-as < %s | llvm-dis | not grep '(' &&
4; RUN: llvm-as < %s
Chris Lattner75d14122004-01-13 05:32:27 +00005
6%A = global long 0
7
8global long* cast (long add (long cast (long* %A to long), long 0) to long*) ; X + 0 == X
9global long* cast (long sub (long cast (long* %A to long), long 0) to long*) ; X - 0 == X
10global long* cast (long mul (long cast (long* %A to long), long 0) to long*) ; X * 0 == 0
11global long* cast (long div (long cast (long* %A to long), long 1) to long*) ; X / 1 == X
12global long* cast (long rem (long cast (long* %A to long), long 1) to long*) ; X % 1 == 0
13global long* cast (long and (long cast (long* %A to long), long 0) to long*) ; X & 0 == 0
14global long* cast (long and (long cast (long* %A to long), long -1) to long*) ; X & -1 == X
15global long or (long cast (long* %A to long), long -1) ; X | -1 == -1
16global long* cast (long xor (long cast (long* %A to long), long 0) to long*) ; X ^ 0 == X
17
18%Ty = type { int, int }
19%B = external global %Ty
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21global bool setlt (long* %A, long* getelementptr (long* %A, long 1)) ; true
22global bool setlt (long* %A, long* getelementptr (long* %A, long 0)) ; false
23global bool setlt (int* getelementptr (%Ty* %B, long 0, ubyte 0),
24 int* getelementptr (%Ty* %B, long 0, ubyte 1)) ; true
Chris Lattner28d85f12004-07-08 15:38:23 +000025;global bool setne (long* %A, long* cast (%Ty* %B to long*)) ; true
Chris Lattner75d14122004-01-13 05:32:27 +000026
Chris Lattner63540f52006-01-05 07:46:46 +000027global bool seteq ({ short }* cast (int 1 to { short }*), { short }* null)
28global bool setlt ({ short }* cast (int 1 to { short }*), { short }* cast (int 2 to { short }*))
29