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llvm-mirror/test/Transforms/InstCombine/rem.ll
Reid Spencer 82293f34de For PR411:
Update these tests to not use the same name even though the type of the
value differs. After PR411 hits, type planes will be gone and it will be
illegal for a name to be used twice, regardless of type.

llvm-svn: 33660
2007-01-30 16:16:01 +00:00

80 lines
1.5 KiB
LLVM

; This test makes sure that these instructions are properly eliminated.
;
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine -disable-output &&
; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | not grep rem
implementation
int %test1(int %A) {
%B = rem int %A, 1 ; ISA constant 0
ret int %B
}
int %test2(int %A) { ; 0 % X = 0, we don't need to preserve traps
%B = rem int 0, %A
ret int %B
}
uint %test3(uint %A) {
%B = rem uint %A, 8 ; & 7
ret uint %B
}
bool %test3a(int %A) {
%B = rem int %A, -8 ; & 7
%C = setne int %B, 0
ret bool %C
}
uint %test4(uint %X, bool %C) {
%V = select bool %C, uint 1, uint 8
%R = rem uint %X, %V
ret uint %R
}
uint %test5(uint %X, ubyte %B) {
%Amt = shl uint 32, ubyte %B
%V = rem uint %X, %Amt
ret uint %V
}
int %test6(int %A) {
%B = rem int %A, 0 ;; undef
ret int %B
}
int %test7(int %A) {
%B = mul int %A, 26
%C = rem int %B, 13
ret int %C
}
int %test8(int %A) {
%B = shl int %A, ubyte 4
%C = rem int %B, 8
ret int %C
}
uint %test9(uint %A) {
%B = mul uint %A, 124
%C = rem uint %B, 62
ret uint %C
}
int %test10(ubyte %c) {
%tmp.1 = cast ubyte %c to int
%tmp.2 = mul int %tmp.1, 3
%tmp.3 = cast int %tmp.2 to ulong
%tmp.5 = rem ulong %tmp.3, 3
%tmp.6 = cast ulong %tmp.5 to int
ret int %tmp.6
}
int %test11(int %i) {
%tmp.1 = and int %i, -2
%tmp.3 = mul int %tmp.1, 3
%tmp.5 = rem int %tmp.3, 6
ret int %tmp.5
}