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llvm-mirror/test/Transforms/InstCombine/apint-and1.ll
Chandler Carruth 5d3a0ce4e5 Fix the remaining TCL-style quotes found in the testsuite. This is
another mechanical change accomplished though the power of terrible Perl
scripts.

I have manually switched some "s to 's to make escaping simpler.

While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.

Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/

llvm-svn: 159547
2012-07-02 19:09:46 +00:00

58 lines
1.3 KiB
LLVM

; This test makes sure that and instructions are properly eliminated.
; This test is for Integer BitWidth <= 64 && BitWidth % 8 != 0.
; RUN: opt < %s -instcombine -S | not grep "and "
; END.
define i39 @test0(i39 %A) {
%B = and i39 %A, 0 ; zero result
ret i39 %B
}
define i47 @test1(i47 %A, i47 %B) {
;; (~A & ~B) == (~(A | B)) - De Morgan's Law
%NotA = xor i47 %A, -1
%NotB = xor i47 %B, -1
%C1 = and i47 %NotA, %NotB
ret i47 %C1
}
define i15 @test2(i15 %x) {
%tmp.2 = and i15 %x, -1 ; noop
ret i15 %tmp.2
}
define i23 @test3(i23 %x) {
%tmp.0 = and i23 %x, 127
%tmp.2 = and i23 %tmp.0, 128
ret i23 %tmp.2
}
define i1 @test4(i37 %x) {
%A = and i37 %x, -2147483648
%B = icmp ne i37 %A, 0
ret i1 %B
}
define i7 @test5(i7 %A, i7* %P) {
%B = or i7 %A, 3
%C = xor i7 %B, 12
store i7 %C, i7* %P
%r = and i7 %C, 3
ret i7 %r
}
define i7 @test6(i7 %A, i7 %B) {
;; ~(~X & Y) --> (X | ~Y)
%t0 = xor i7 %A, -1
%t1 = and i7 %t0, %B
%r = xor i7 %t1, -1
ret i7 %r
}
define i47 @test7(i47 %A) {
%X = ashr i47 %A, 39 ;; sign extend
%C1 = and i47 %X, 255
ret i47 %C1
}