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; This test makes sure that these instructions are properly eliminated.
;
; RUN: if as < %s | opt -instcombine | dis | grep sh
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
implementation
int %test1(int %A) {
%B = shl int %A, ubyte 0
ret int %B
}
int %test2(ubyte %A) {
%B = shl int 0, ubyte %A
ret int %B
}
int %test3(int %A) {
%B = shr int %A, ubyte 0
ret int %B
}
int %test4(ubyte %A) {
%B = shr int 0, ubyte %A
ret int %B
}
uint %test5(uint %A) {
%B = shr uint %A, ubyte 32 ;; shift all bits out
ret uint %B
}
uint %test6(uint %A) {
%B = shl uint %A, ubyte 1 ;; convert to an add instruction
ret uint %B
}
int %test7(ubyte %A) {
%B = shr int -1, ubyte %A ;; Always equal to -1
ret int %B
}
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