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Diffstat (limited to 'test/Transforms/InstCombine/select.ll')
| -rw-r--r-- | test/Transforms/InstCombine/select.ll | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/select.ll b/test/Transforms/InstCombine/select.ll new file mode 100644 index 0000000..ccc63c2 --- /dev/null +++ b/test/Transforms/InstCombine/select.ll @@ -0,0 +1,182 @@ +; This test makes sure that these instructions are properly eliminated. + +; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \ +; RUN: not grep select +; END. + +implementation + +int %test1(int %A, int %B) { + %C = select bool false, int %A, int %B + ret int %C +} + +int %test2(int %A, int %B) { + %C = select bool true, int %A, int %B + ret int %C +} + +int %test3(bool %C, int %I) { + %V = select bool %C, int %I, int %I ; V = I + ret int %V +} + +bool %test4(bool %C) { + %V = select bool %C, bool true, bool false ; V = C + ret bool %V +} + +bool %test5(bool %C) { + %V = select bool %C, bool false, bool true ; V = !C + ret bool %V +} + +int %test6(bool %C) { + %V = select bool %C, int 1, int 0 ; V = cast C to int + ret int %V +} + +bool %test7(bool %C, bool %X) { + %R = select bool %C, bool true, bool %X ; R = or C, X + ret bool %R +} + +bool %test8(bool %C, bool %X) { + %R = select bool %C, bool %X, bool false ; R = and C, X + ret bool %R +} + +bool %test9(bool %C, bool %X) { + %R = select bool %C, bool false, bool %X ; R = and !C, X + ret bool %R +} + +bool %test10(bool %C, bool %X) { + %R = select bool %C, bool %X, bool true ; R = or !C, X + ret bool %R +} + +int %test11(int %a) { + %C = seteq int %a, 0 + %R = select bool %C, int 0, int 1 + ret int %R +} + +int %test12(bool %cond, int %a) { + %b = or int %a, 1 + %c = select bool %cond, int %b, int %a + ret int %c +} + +int %test12a(bool %cond, int %a) { + %b = shr int %a, ubyte 1 + %c = select bool %cond, int %b, int %a + ret int %c +} + +int %test12b(bool %cond, int %a) { + %b = shr int %a, ubyte 1 + %c = select bool %cond, int %a, int %b + ret int %c +} + +int %test13(int %a, int %b) { + %C = seteq int %a, %b + %V = select bool %C, int %a, int %b + ret int %V +} + +int %test13a(int %a, int %b) { + %C = setne int %a, %b + %V = select bool %C, int %a, int %b + ret int %V +} + +int %test13b(int %a, int %b) { + %C = seteq int %a, %b + %V = select bool %C, int %b, int %a + ret int %V +} + +bool %test14a(bool %C, int %X) { + %V = select bool %C, int %X, int 0 + %R = setlt int %V, 1 ; (X < 1) | !C + ret bool %R +} + +bool %test14b(bool %C, int %X) { + %V = select bool %C, int 0, int %X + %R = setlt int %V, 1 ; (X < 1) | C + ret bool %R +} + +int %test15a(int %X) { ;; Code sequence for (X & 16) ? 16 : 0 + %t1 = and int %X, 16 + %t2 = seteq int %t1, 0 + %t3 = select bool %t2, int 0, int 16 ;; X & 16 + ret int %t3 +} + +int %test15b(int %X) { ;; Code sequence for (X & 32) ? 0 : 24 + %t1 = and int %X, 32 + %t2 = seteq int %t1, 0 + %t3 = select bool %t2, int 32, int 0 ;; ~X & 32 + ret int %t3 +} + +int %test15c(int %X) { ;; Alternate code sequence for (X & 16) ? 16 : 0 + %t1 = and int %X, 16 + %t2 = seteq int %t1, 16 + %t3 = select bool %t2, int 16, int 0 ;; X & 16 + ret int %t3 +} + +int %test15d(int %X) { ;; Alternate code sequence for (X & 16) ? 16 : 0 + %t1 = and int %X, 16 + %t2 = setne int %t1, 0 + %t3 = select bool %t2, int 16, int 0 ;; X & 16 + ret int %t3 +} + +int %test16(bool %C, int* %P) { + %P2 = select bool %C, int* %P, int* null + %V = load int* %P2 + ret int %V +} + +bool %test17(int* %X, bool %C) { + %R = select bool %C, int* %X, int* null + %RV = seteq int* %R, null + ret bool %RV +} + +int %test18(int %X, int %Y, bool %C) { + %R = select bool %C, int %X, int 0 + %V = div int %Y, %R ; div Y,X + ret int %V +} + +int %test19(uint %x) { + %tmp = setgt uint %x, 2147483647 + %retval = select bool %tmp, int -1, int 0 + ret int %retval +} + +int %test20(int %x) { + %tmp = setlt int %x, 0 + %retval = select bool %tmp, int -1, int 0 + ret int %retval +} + +long %test21(int %x) { + %tmp = setlt int %x, 0 + %retval = select bool %tmp, long -1, long 0 + ret long %retval +} + +short %test22(int %x) { + %tmp = setlt int %x, 0 + %retval = select bool %tmp, short -1, short 0 + ret short %retval +} + |