mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
e78760e179
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8558 91177308-0d34-0410-b5e6-96231b3b80d8
136 lines
2.8 KiB
LLVM
136 lines
2.8 KiB
LLVM
; RUN: llvm-as < %s | opt -cee -constprop -instcombine -dce | llvm-dis | not grep 'REMOVE'
|
|
|
|
int %test1(int %A) {
|
|
%cond = seteq int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = add int %A, 2 ; Should become = 42
|
|
ret int %REMOVE
|
|
F:
|
|
ret int 8
|
|
}
|
|
|
|
bool %test2(int %A) {
|
|
%cond = seteq int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = seteq int %A, 2 ; Should become = false
|
|
ret bool %REMOVE
|
|
F:
|
|
ret bool false
|
|
}
|
|
|
|
bool %test3(int %A) {
|
|
%cond = setlt int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = setgt int %A, 47 ; Should become = false
|
|
ret bool %REMOVE
|
|
F:
|
|
%REMOVE2 = setge int %A, 40 ; Should become = true
|
|
ret bool %REMOVE2
|
|
}
|
|
|
|
bool %test4(int %A) {
|
|
%cond = setlt int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = setgt int %A, 47 ; Should become = false
|
|
ret bool %REMOVE
|
|
F:
|
|
ret bool false
|
|
}
|
|
|
|
int %test5(int %A, int %B) {
|
|
%cond = setne int %A, %B
|
|
br bool %cond, label %F, label %T
|
|
T:
|
|
%C = sub int %A, %B ; = 0
|
|
ret int %C
|
|
F:
|
|
ret int 0
|
|
}
|
|
|
|
bool %test6(int %A) {
|
|
%REMOVE = setlt int %A, 47 ; Should become dead
|
|
%cond = setlt int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
ret bool %REMOVE ;; == true
|
|
F:
|
|
ret bool false
|
|
}
|
|
|
|
bool %test7(int %A) {
|
|
%cond = setlt int %A, 40
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = xor bool %cond, true
|
|
ret bool %REMOVE
|
|
F:
|
|
ret bool false
|
|
}
|
|
|
|
; Test that and expressions are handled...
|
|
bool %test8(int %A, int %B) {
|
|
%cond1 = setle int %A, 7
|
|
%cond2 = setle int %B, 7
|
|
%cond = and bool %cond1, %cond2
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE1 = seteq int %A, 9 ; false
|
|
%REMOVE2 = setge int %B, 9 ; false
|
|
%REMOVE = or bool %REMOVE1, %REMOVE2 ; false
|
|
ret bool %REMOVE
|
|
F:
|
|
ret bool false
|
|
}
|
|
|
|
; Test that or expressions are handled...
|
|
bool %test9(int %A, int %B) {
|
|
%cond1 = setle int %A, 7
|
|
%cond2 = setle int %B, 7
|
|
%cond = or bool %cond1, %cond2
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
ret bool false
|
|
F:
|
|
%REMOVE1 = setge int %A, 8 ; true
|
|
%REMOVE2 = setge int %B, 8 ; true
|
|
%REMOVE = or bool %REMOVE1, %REMOVE2 ; true
|
|
ret bool %REMOVE
|
|
}
|
|
|
|
bool %test10(int %A) {
|
|
%cond = setle int %A, 7
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
ret bool false
|
|
F:
|
|
%REMOVE = setge int %A, 8
|
|
ret bool %REMOVE
|
|
}
|
|
|
|
; Implement correlated comparisons against non-constants
|
|
bool %test11(int %A, int %B) {
|
|
%cond = setlt int %A, %B
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE1 = seteq int %A, %B ; false
|
|
%REMOVE2 = setle int %A, %B ; true
|
|
%cond2 = and bool %REMOVE1, %REMOVE2
|
|
ret bool %cond2
|
|
F:
|
|
ret bool true
|
|
}
|
|
|
|
bool %test12(int %A) {
|
|
%cond = setlt int %A, 0
|
|
br bool %cond, label %T, label %F
|
|
T:
|
|
%REMOVE = setne int %A, 0 ; true
|
|
ret bool %REMOVE
|
|
F:
|
|
ret bool false
|
|
}
|