| ; This test makes sure that these instructions are properly eliminated. |
| ; |
| |
| ; RUN: llvm-as < %s | 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 ot preserve traps |
| %B = rem int 0, %A |
| ret int %B |
| } |
| |
| uint %test3(uint %A) { |
| %B = rem uint %A, 8 ; & 7 |
| ret uint %B |
| } |
| |
| bool %test3(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 |
| } |