llvm-6502/test/Transforms/InstCombine/apint-sub.ll
Chandler Carruth 1de43ede89 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. =/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159547 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02 19:09:46 +00:00

142 lines
3.2 KiB
LLVM

; This test makes sure that sub instructions are properly eliminated
; even with arbitrary precision integers.
;
; RUN: opt < %s -instcombine -S | \
; RUN: grep -v "sub i19 %Cok, %Bok" | grep -v "sub i25 0, %Aok" | not grep sub
; END.
define i23 @test1(i23 %A) {
%B = sub i23 %A, %A ; <i23> [#uses=1]
ret i23 %B
}
define i47 @test2(i47 %A) {
%B = sub i47 %A, 0 ; <i47> [#uses=1]
ret i47 %B
}
define i97 @test3(i97 %A) {
%B = sub i97 0, %A ; <i97> [#uses=1]
%C = sub i97 0, %B ; <i97> [#uses=1]
ret i97 %C
}
define i108 @test4(i108 %A, i108 %x) {
%B = sub i108 0, %A ; <i108> [#uses=1]
%C = sub i108 %x, %B ; <i108> [#uses=1]
ret i108 %C
}
define i19 @test5(i19 %A, i19 %Bok, i19 %Cok) {
%D = sub i19 %Bok, %Cok ; <i19> [#uses=1]
%E = sub i19 %A, %D ; <i19> [#uses=1]
ret i19 %E
}
define i57 @test6(i57 %A, i57 %B) {
%C = and i57 %A, %B ; <i57> [#uses=1]
%D = sub i57 %A, %C ; <i57> [#uses=1]
ret i57 %D
}
define i77 @test7(i77 %A) {
%B = sub i77 -1, %A ; <i77> [#uses=1]
ret i77 %B
}
define i27 @test8(i27 %A) {
%B = mul i27 9, %A ; <i27> [#uses=1]
%C = sub i27 %B, %A ; <i27> [#uses=1]
ret i27 %C
}
define i42 @test9(i42 %A) {
%B = mul i42 3, %A ; <i42> [#uses=1]
%C = sub i42 %A, %B ; <i42> [#uses=1]
ret i42 %C
}
define i124 @test10(i124 %A, i124 %B) {
%C = sub i124 0, %A ; <i124> [#uses=1]
%D = sub i124 0, %B ; <i124> [#uses=1]
%E = mul i124 %C, %D ; <i124> [#uses=1]
ret i124 %E
}
define i55 @test10a(i55 %A) {
%C = sub i55 0, %A ; <i55> [#uses=1]
%E = mul i55 %C, 7 ; <i55> [#uses=1]
ret i55 %E
}
define i1 @test11(i9 %A, i9 %B) {
%C = sub i9 %A, %B ; <i9> [#uses=1]
%cD = icmp ne i9 %C, 0 ; <i1> [#uses=1]
ret i1 %cD
}
define i43 @test12(i43 %A) {
%B = ashr i43 %A, 42 ; <i43> [#uses=1]
%C = sub i43 0, %B ; <i43> [#uses=1]
ret i43 %C
}
define i79 @test13(i79 %A) {
%B = lshr i79 %A, 78 ; <i79> [#uses=1]
%C = sub i79 0, %B ; <i79> [#uses=1]
ret i79 %C
}
define i1024 @test14(i1024 %A) {
%B = lshr i1024 %A, 1023 ; <i1024> [#uses=1]
%C = bitcast i1024 %B to i1024 ; <i1024> [#uses=1]
%D = sub i1024 0, %C ; <i1024> [#uses=1]
ret i1024 %D
}
define i14 @test15(i14 %A, i14 %B) {
%C = sub i14 0, %A ; <i14> [#uses=1]
%D = srem i14 %B, %C ; <i14> [#uses=1]
ret i14 %D
}
define i51 @test16(i51 %A) {
%X = sdiv i51 %A, 1123 ; <i51> [#uses=1]
%Y = sub i51 0, %X ; <i51> [#uses=1]
ret i51 %Y
}
; Can't fold subtract here because negation it might oveflow.
; PR3142
define i25 @test17(i25 %Aok) {
%B = sub i25 0, %Aok ; <i25> [#uses=1]
%C = sdiv i25 %B, 1234 ; <i25> [#uses=1]
ret i25 %C
}
define i128 @test18(i128 %Y) {
%tmp.4 = shl i128 %Y, 2 ; <i128> [#uses=1]
%tmp.12 = shl i128 %Y, 2 ; <i128> [#uses=1]
%tmp.8 = sub i128 %tmp.4, %tmp.12 ; <i128> [#uses=1]
ret i128 %tmp.8
}
define i39 @test19(i39 %X, i39 %Y) {
%Z = sub i39 %X, %Y ; <i39> [#uses=1]
%Q = add i39 %Z, %Y ; <i39> [#uses=1]
ret i39 %Q
}
define i1 @test20(i33 %g, i33 %h) {
%tmp.2 = sub i33 %g, %h ; <i33> [#uses=1]
%tmp.4 = icmp ne i33 %tmp.2, %g ; <i1> [#uses=1]
ret i1 %tmp.4
}
define i1 @test21(i256 %g, i256 %h) {
%tmp.2 = sub i256 %g, %h ; <i256> [#uses=1]
%tmp.4 = icmp ne i256 %tmp.2, %g; <i1> [#uses=1]
ret i1 %tmp.4
}