[llvm-commits] CVS: llvm/test/Regression/Assembler/ConstantExprFold.llx

[Chris Lattner]

Changes in directory llvm/test/Regression/Assembler:

ConstantExprFold.llx added (r1.1)

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Log message:

New testcase for symbolic constant folding opportunities that LLVM should get.


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Diffs of the changes:  (+25 -0)

Index: llvm/test/Regression/Assembler/ConstantExprFold.llx
diff -c /dev/null llvm/test/Regression/Assembler/ConstantExprFold.llx:1.1
*** /dev/null	Mon Jan 12 23:32:37 2004
--- llvm/test/Regression/Assembler/ConstantExprFold.llx	Mon Jan 12 23:32:27 2004
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*** 0 ****
--- 1,25 ----
+ ; This test checks to make sure that constant exprs fold in some simple situations
+ 
+ ; RUN: llvm-as < %s | llvm-dis | not grep '('
+ 
+ %A = global long 0
+ 
+ global long* cast (long add (long cast (long* %A to long), long 0) to long*) ; X + 0 == X
+ global long* cast (long sub (long cast (long* %A to long), long 0) to long*) ; X - 0 == X
+ global long* cast (long mul (long cast (long* %A to long), long 0) to long*) ; X * 0 == 0
+ global long* cast (long div (long cast (long* %A to long), long 1) to long*) ; X / 1 == X
+ global long* cast (long rem (long cast (long* %A to long), long 1) to long*) ; X % 1 == 0
+ global long* cast (long and (long cast (long* %A to long), long 0) to long*) ; X & 0 == 0
+ global long* cast (long and (long cast (long* %A to long), long -1) to long*) ; X & -1 == X
+ global long or (long cast (long* %A to long), long -1)  ; X | -1 == -1
+ global long* cast (long xor (long cast (long* %A to long), long 0) to long*) ; X ^ 0 == X
+ 
+ %Ty = type { int, int }
+ %B = external global %Ty 
+ 
+ global bool setlt (long* %A, long* getelementptr (long* %A, long 1))        ; true
+ global bool setlt (long* %A, long* getelementptr (long* %A, long 0))        ; false
+ global bool setlt (int* getelementptr (%Ty* %B, long 0, ubyte 0), 
+                    int* getelementptr (%Ty* %B, long 0, ubyte 1))            ; true
+ global bool setne (long* %A, long* cast (%Ty* %B to long*))                 ; true
+