1
0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-15 04:30:12 +00:00
llvm-6502/test/Transforms/InstCombine/set.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

172 lines
4.6 KiB
LLVM

; This test makes sure that these instructions are properly eliminated.
;
; RUN: opt < %s -instcombine -S | not grep icmp
; END.
@X = external global i32 ; <i32*> [#uses=2]
define i1 @test1(i32 %A) {
%B = icmp eq i32 %A, %A ; <i1> [#uses=1]
; Never true
%C = icmp eq i32* @X, null ; <i1> [#uses=1]
%D = and i1 %B, %C ; <i1> [#uses=1]
ret i1 %D
}
define i1 @test2(i32 %A) {
%B = icmp ne i32 %A, %A ; <i1> [#uses=1]
; Never false
%C = icmp ne i32* @X, null ; <i1> [#uses=1]
%D = or i1 %B, %C ; <i1> [#uses=1]
ret i1 %D
}
define i1 @test3(i32 %A) {
%B = icmp slt i32 %A, %A ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test4(i32 %A) {
%B = icmp sgt i32 %A, %A ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test5(i32 %A) {
%B = icmp sle i32 %A, %A ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test6(i32 %A) {
%B = icmp sge i32 %A, %A ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test7(i32 %A) {
; true
%B = icmp uge i32 %A, 0 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test8(i32 %A) {
; false
%B = icmp ult i32 %A, 0 ; <i1> [#uses=1]
ret i1 %B
}
;; test operations on boolean values these should all be eliminated$a
define i1 @test9(i1 %A) {
; false
%B = icmp ult i1 %A, false ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test10(i1 %A) {
; false
%B = icmp ugt i1 %A, true ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test11(i1 %A) {
; true
%B = icmp ule i1 %A, true ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test12(i1 %A) {
; true
%B = icmp uge i1 %A, false ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test13(i1 %A, i1 %B) {
; A | ~B
%C = icmp uge i1 %A, %B ; <i1> [#uses=1]
ret i1 %C
}
define i1 @test14(i1 %A, i1 %B) {
; ~(A ^ B)
%C = icmp eq i1 %A, %B ; <i1> [#uses=1]
ret i1 %C
}
define i1 @test16(i32 %A) {
%B = and i32 %A, 5 ; <i32> [#uses=1]
; Is never true
%C = icmp eq i32 %B, 8 ; <i1> [#uses=1]
ret i1 %C
}
define i1 @test17(i8 %A) {
%B = or i8 %A, 1 ; <i8> [#uses=1]
; Always false
%C = icmp eq i8 %B, 2 ; <i1> [#uses=1]
ret i1 %C
}
define i1 @test18(i1 %C, i32 %a) {
entry:
br i1 %C, label %endif, label %else
else: ; preds = %entry
br label %endif
endif: ; preds = %else, %entry
%b.0 = phi i32 [ 0, %entry ], [ 1, %else ] ; <i32> [#uses=1]
%tmp.4 = icmp slt i32 %b.0, 123 ; <i1> [#uses=1]
ret i1 %tmp.4
}
define i1 @test19(i1 %A, i1 %B) {
%a = zext i1 %A to i32 ; <i32> [#uses=1]
%b = zext i1 %B to i32 ; <i32> [#uses=1]
%C = icmp eq i32 %a, %b ; <i1> [#uses=1]
ret i1 %C
}
define i32 @test20(i32 %A) {
%B = and i32 %A, 1 ; <i32> [#uses=1]
%C = icmp ne i32 %B, 0 ; <i1> [#uses=1]
%D = zext i1 %C to i32 ; <i32> [#uses=1]
ret i32 %D
}
define i32 @test21(i32 %a) {
%tmp.6 = and i32 %a, 4 ; <i32> [#uses=1]
%not.tmp.7 = icmp ne i32 %tmp.6, 0 ; <i1> [#uses=1]
%retval = zext i1 %not.tmp.7 to i32 ; <i32> [#uses=1]
ret i32 %retval
}
define i1 @test22(i32 %A, i32 %X) {
%B = and i32 %A, 100663295 ; <i32> [#uses=1]
%C = icmp ult i32 %B, 268435456 ; <i1> [#uses=1]
%Y = and i32 %X, 7 ; <i32> [#uses=1]
%Z = icmp sgt i32 %Y, -1 ; <i1> [#uses=1]
%R = or i1 %C, %Z ; <i1> [#uses=1]
ret i1 %R
}
define i32 @test23(i32 %a) {
%tmp.1 = and i32 %a, 1 ; <i32> [#uses=1]
%tmp.2 = icmp eq i32 %tmp.1, 0 ; <i1> [#uses=1]
%tmp.3 = zext i1 %tmp.2 to i32 ; <i32> [#uses=1]
ret i32 %tmp.3
}
define i32 @test24(i32 %a) {
%tmp1 = and i32 %a, 4 ; <i32> [#uses=1]
%tmp.1 = lshr i32 %tmp1, 2 ; <i32> [#uses=1]
%tmp.2 = icmp eq i32 %tmp.1, 0 ; <i1> [#uses=1]
%tmp.3 = zext i1 %tmp.2 to i32 ; <i32> [#uses=1]
ret i32 %tmp.3
}
define i1 @test25(i32 %A) {
%B = and i32 %A, 2 ; <i32> [#uses=1]
%C = icmp ugt i32 %B, 2 ; <i1> [#uses=1]
ret i1 %C
}