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; The %A getelementptr instruction should be eliminated here
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep getelementptr | not grep '%A '
%Global = constant [10 x sbyte] c"helloworld"
implementation
int *%foo1(int* %I) { ; Test noop elimination
%A = getelementptr int* %I, long 0
ret int * %A
}
int* %foo2(int* %I) { ; Test noop elimination
%A = getelementptr int* %I
ret int* %A
}
int* %foo3(int * %I) { ; Test that two array indexing geps fold
%A = getelementptr int* %I, long 17
%B = getelementptr int* %A, long 4
ret int* %B
}
int* %foo4({int} *%I) { ; Test that two getelementptr insts fold
%A = getelementptr {int}* %I, long 1
%B = getelementptr {int}* %A, long 0, ubyte 0
ret int* %B
}
sbyte * %foo5() {
; This should be turned into a constexpr instead of being an instruction
%A = getelementptr [10 x sbyte]* %Global, long 0, long 4
ret sbyte* %A
}
int* %foo6() {
%M = malloc [4 x int]
%A = getelementptr [4 x int]* %M, long 0, long 0
%B = getelementptr int* %A, long 2
ret int* %B
}
int* %foo7(int* %I, long %C, long %D) {
%A = getelementptr int* %I, long %C
%B = getelementptr int* %A, long %D
ret int* %B
}
sbyte* %foo8([10 x int]* %X) {
%A = getelementptr [10 x int]* %X, long 0, long 0 ;; Fold into the cast.
%B = cast int* %A to sbyte*
ret sbyte * %B
}
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