diff options
Diffstat (limited to 'test/Transforms/InstCombine/apint-and2.ll')
-rw-r--r-- | test/Transforms/InstCombine/apint-and2.ll | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/apint-and2.ll b/test/Transforms/InstCombine/apint-and2.ll new file mode 100644 index 0000000..f7b3934 --- /dev/null +++ b/test/Transforms/InstCombine/apint-and2.ll @@ -0,0 +1,82 @@ +; This test makes sure that and instructions are properly eliminated. +; This test is for Integer BitWidth > 64 && BitWidth <= 1024. + +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep {and } +; END. + + +define i999 @test0(i999 %A) { + %B = and i999 %A, 0 ; zero result + ret i999 %B +} + +define i477 @test1(i477 %A, i477 %B) { + ;; (~A & ~B) == (~(A | B)) - De Morgan's Law + %NotA = xor i477 %A, -1 + %NotB = xor i477 %B, -1 + %C1 = and i477 %NotA, %NotB + ret i477 %C1 +} + +define i129 @tst(i129 %A, i129 %B) { + ;; (~A & ~B) == (~(A | B)) - De Morgan's Law + %NotA = xor i129 %A, -1 + %NotB = xor i129 %B, -1 + %C1 = and i129 %NotA, %NotB + ret i129 %C1 +} + +define i65 @test(i65 %A, i65 %B) { + ;; (~A & ~B) == (~(A | B)) - De Morgan's Law + %NotA = xor i65 %A, -1 + %NotB = xor i65 -1, %B + %C1 = and i65 %NotA, %NotB + ret i65 %C1 +} + +define i66 @tes(i66 %A, i66 %B) { + ;; (~A & ~B) == (~(A | B)) - De Morgan's Law + %NotA = xor i66 %A, -1 + %NotB = xor i66 %B, -1 + %C1 = and i66 %NotA, %NotB + ret i66 %C1 +} + +define i1005 @test2(i1005 %x) { + %tmp.2 = and i1005 %x, -1 ; noop + ret i1005 %tmp.2 +} + +define i123 @test3(i123 %x) { + %tmp.0 = and i123 %x, 127 + %tmp.2 = and i123 %tmp.0, 128 + ret i123 %tmp.2 +} + +define i1 @test4(i737 %x) { + %A = and i737 %x, -2147483648 + %B = icmp ne i737 %A, 0 + ret i1 %B +} + +define i117 @test5(i117 %A, i117* %P) { + %B = or i117 %A, 3 + %C = xor i117 %B, 12 + store i117 %C, i117* %P + %r = and i117 %C, 3 + ret i117 %r +} + +define i117 @test6(i117 %A, i117 %B) { + ;; ~(~X & Y) --> (X | ~Y) + %t0 = xor i117 %A, -1 + %t1 = and i117 %t0, %B + %r = xor i117 %t1, -1 + ret i117 %r +} + +define i1024 @test7(i1024 %A) { + %X = ashr i1024 %A, 1016 ;; sign extend + %C1 = and i1024 %X, 255 + ret i1024 %C1 +} |