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; This test makes sure that these instructions are properly eliminated.
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep select &&
; RUN: llvm-as < %s | opt -instcombine -disable-output
implementation
int %test1(int %A, int %B) {
%C = select bool false, int %A, int %B
ret int %C
}
int %test2(int %A, int %B) {
%C = select bool true, int %A, int %B
ret int %C
}
int %test3(bool %C, int %I) {
%V = select bool %C, int %I, int %I ; V = I
ret int %V
}
bool %test4(bool %C) {
%V = select bool %C, bool true, bool false ; V = C
ret bool %V
}
bool %test5(bool %C) {
%V = select bool %C, bool false, bool true ; V = !C
ret bool %V
}
int %test6(bool %C) {
%V = select bool %C, int 1, int 0 ; V = cast C to int
ret int %V
}
bool %test7(bool %C, bool %X) {
%R = select bool %C, bool true, bool %X ; R = or C, X
ret bool %R
}
bool %test8(bool %C, bool %X) {
%R = select bool %C, bool %X, bool false ; R = and C, X
ret bool %R
}
bool %test9(bool %C, bool %X) {
%R = select bool %C, bool false, bool %X ; R = and !C, X
ret bool %R
}
bool %test10(bool %C, bool %X) {
%R = select bool %C, bool %X, bool true ; R = or !C, X
ret bool %R
}
int %test11(int %a) {
%C = seteq int %a, 0
%R = select bool %C, int 0, int 1
ret int %R
}
int %test12(bool %cond, int %a) {
%b = or int %a, 1
%c = select bool %cond, int %b, int %a
ret int %c
}
int %test12a(bool %cond, int %a) {
%b = shr int %a, ubyte 1
%c = select bool %cond, int %b, int %a
ret int %c
}
int %test12b(bool %cond, int %a) {
%b = shr int %a, ubyte 1
%c = select bool %cond, int %a, int %b
ret int %c
}
int %test13(int %a, int %b) {
%C = seteq int %a, %b
%V = select bool %C, int %a, int %b
ret int %V
}
int %test13a(int %a, int %b) {
%C = setne int %a, %b
%V = select bool %C, int %a, int %b
ret int %V
}
int %test13b(int %a, int %b) {
%C = seteq int %a, %b
%V = select bool %C, int %b, int %a
ret int %V
}
bool %test14a(bool %C, int %X) {
%V = select bool %C, int %X, int 0
%R = setlt int %V, 1 ; (X < 1) | !C
ret bool %R
}
bool %test14b(bool %C, int %X) {
%V = select bool %C, int 0, int %X
%R = setlt int %V, 1 ; (X < 1) | C
ret bool %R
}
int %test15a(int %X) { ;; Code sequence for (X & 16) ? 16 : 0
%t1 = and int %X, 16
%t2 = seteq int %t1, 0
%t3 = select bool %t2, int 0, int 16 ;; X & 16
ret int %t3
}
int %test15b(int %X) { ;; Code sequence for (X & 32) ? 0 : 24
%t1 = and int %X, 32
%t2 = seteq int %t1, 0
%t3 = select bool %t2, int 32, int 0 ;; ~X & 32
ret int %t3
}
int %test15c(int %X) { ;; Alternate code sequence for (X & 16) ? 16 : 0
%t1 = and int %X, 16
%t2 = seteq int %t1, 16
%t3 = select bool %t2, int 16, int 0 ;; X & 16
ret int %t3
}
int %test15d(int %X) { ;; Alternate code sequence for (X & 16) ? 16 : 0
%t1 = and int %X, 16
%t2 = setne int %t1, 0
%t3 = select bool %t2, int 16, int 0 ;; X & 16
ret int %t3
}
int %test16(bool %C, int* %P) {
%P2 = select bool %C, int* %P, int* null
%V = load int* %P2
ret int %V
}
bool %test17(int* %X, bool %C) {
%R = select bool %C, int* %X, int* null
%RV = seteq int* %R, null
ret bool %RV
}
int %test18(int %X, int %Y, bool %C) {
%R = select bool %C, int %X, int 0
%V = div int %Y, %R ; div Y,X
ret int %V
}
int %test19(uint %x) {
%tmp = setgt uint %x, 2147483647
%retval = select bool %tmp, int -1, int 0
ret int %retval
}
int %test20(int %x) {
%tmp = setlt int %x, 0
%retval = select bool %tmp, int -1, int 0
ret int %retval
}
long %test21(int %x) {
%tmp = setlt int %x, 0
%retval = select bool %tmp, long -1, long 0
ret long %retval
}
short %test20(int %x) {
%tmp = setlt int %x, 0
%retval = select bool %tmp, short -1, short 0
ret short %retval
}
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