1 ; The %A getelementptr instruction should be eliminated here
3 ; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | grep -v '%B' | not grep getelementptr &&
4 ; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | grep foo1
6 %Global = constant [10 x sbyte] c"helloworld"
10 int *%foo1(int* %I) { ; Test noop elimination
11 %A = getelementptr int* %I, long 0
15 int* %foo2(int* %I) { ; Test noop elimination
16 %A = getelementptr int* %I
19 int* %foo3(int * %I) { ; Test that two array indexing geps fold
20 %A = getelementptr int* %I, long 17
21 %B = getelementptr int* %A, long 4
25 int* %foo4({int} *%I) { ; Test that two getelementptr insts fold
26 %A = getelementptr {int}* %I, long 1
27 %B = getelementptr {int}* %A, long 0, uint 0
31 void %foo5(sbyte %B) {
32 ; This should be turned into a constexpr instead of being an instruction
33 %A = getelementptr [10 x sbyte]* %Global, long 0, long 4
34 store sbyte %B, sbyte* %A
40 %A = getelementptr [4 x int]* %M, long 0, long 0
41 %B = getelementptr int* %A, long 2
45 int* %foo7(int* %I, long %C, long %D) {
46 %A = getelementptr int* %I, long %C
47 %B = getelementptr int* %A, long %D
51 sbyte* %foo8([10 x int]* %X) {
52 %A = getelementptr [10 x int]* %X, long 0, long 0 ;; Fold into the cast.
53 %B = cast int* %A to sbyte*
58 %A = getelementptr {int, double}* null, int 0, uint 1
59 %B = cast double* %A to int
63 bool %test10({int, int} * %x, {int, int} * %y) {
64 %tmp.1 = getelementptr {int,int}* %x, int 0, uint 1
65 %tmp.3 = getelementptr {int,int}* %y, int 0, uint 1
66 %tmp.4 = seteq int* %tmp.1, %tmp.3 ;; seteq x, y
70 bool %test11({int,int} *%X) {
71 %P = getelementptr {int,int}* %X, int 0, uint 0
72 %Q = seteq int* %P, null