llvm-6502/test/Transforms/InstCombine/getelementptr_const.ll

15 lines
462 B
LLVM
Raw Normal View History

; Test folding of constantexpr geps into normal geps.
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -gcse -instcombine | \
; RUN: llvm-dis | not grep getelementptr
%Array = external global [40 x int]
int %test(long %X) {
%A = getelementptr int* getelementptr ([40 x int]* %Array, long 0, long 0), long %X
%B = getelementptr [40 x int]* %Array, long 0, long %X
%a = cast int* %A to int
%b = cast int* %B to int
%c = sub int %a, %b
ret int %c
}