mirror of
https://github.com/c64scene-ar/llvm-6502.git
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fb384a15ff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12820 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
1.9 KiB
LLVM
99 lines
1.9 KiB
LLVM
; This test makes sure that these instructions are properly eliminated.
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;
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep select
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implementation
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int %test1(int %A, int %B) {
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%C = select bool false, int %A, int %B
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ret int %C
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}
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int %test2(int %A, int %B) {
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%C = select bool true, int %A, int %B
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ret int %C
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}
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int %test3(bool %C, int %I) {
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%V = select bool %C, int %I, int %I ; V = I
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ret int %V
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}
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bool %test4(bool %C) {
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%V = select bool %C, bool true, bool false ; V = C
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ret bool %V
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}
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bool %test5(bool %C) {
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%V = select bool %C, bool false, bool true ; V = !C
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ret bool %V
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}
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int %test6(bool %C) {
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%V = select bool %C, int 1, int 0 ; V = cast C to int
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ret int %V
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}
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bool %test7(bool %C, bool %X) {
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%R = select bool %C, bool true, bool %X ; R = or C, X
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ret bool %R
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}
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bool %test8(bool %C, bool %X) {
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%R = select bool %C, bool %X, bool false ; R = and C, X
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ret bool %R
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}
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bool %test9(bool %C, bool %X) {
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%R = select bool %C, bool false, bool %X ; R = and !C, X
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ret bool %R
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}
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bool %test10(bool %C, bool %X) {
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%R = select bool %C, bool %X, bool true ; R = or !C, X
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ret bool %R
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}
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int %test11(int %a) {
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%C = seteq int %a, 0
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%R = select bool %C, int 0, int 1
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ret int %R
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}
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int %test12(bool %cond, int %a) {
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%b = or int %a, 1
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%c = select bool %cond, int %b, int %a
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ret int %c
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}
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int %test12a(bool %cond, int %a) {
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%b = shr int %a, ubyte 1
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%c = select bool %cond, int %b, int %a
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ret int %c
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}
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int %test12b(bool %cond, int %a) {
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%b = shr int %a, ubyte 1
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%c = select bool %cond, int %a, int %b
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ret int %c
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}
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int %test13(int %a, int %b) {
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%C = seteq int %a, %b
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%V = select bool %C, int %a, int %b
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ret int %V
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}
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int %test13a(int %a, int %b) {
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%C = setne int %a, %b
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%V = select bool %C, int %a, int %b
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ret int %V
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}
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int %test13b(int %a, int %b) {
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%C = seteq int %a, %b
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%V = select bool %C, int %b, int %a
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ret int %V
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}
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