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new testcases

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31585 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-11-09 05:11:23 +00:00
parent d258efaf6e
commit 12afb70894
2 changed files with 24 additions and 2 deletions
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13
test/Transforms/InstCombine/add.ll
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@ -227,3 +227,16 @@ int %test32(int %A) {
%D = sub int %C, 16
ret int %D
}
ubyte %test33(ubyte %A) { ;; OR A, 1
%B = and ubyte %A, 254
%C = add ubyte %B, 1
ret ubyte %C
}
ubyte %test34(ubyte %A) {
%B = add ubyte %A, 64 ;; dead
%C = and ubyte %B, 12
ret ubyte %C
}

13
test/Transforms/InstCombine/shift-sra.ll
View File

@ -1,8 +1,17 @@
; RUN: llvm-as < %s | opt -instcombine -disable-output &&
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'lshr int'
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'lshr int' | wc -l | grep 2 &&
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep ashr
int %test0(int %X, ubyte %A) {
int %test1(int %X, ubyte %A) {
%Y = shr int %X, ubyte %A ; can be logical shift.
%Z = and int %Y, 1
ret int %Z
}
int %test2(ubyte %tmp) {
%tmp3 = cast ubyte %tmp to int
%tmp4 = add int %tmp3, 7
%tmp5 = ashr int %tmp4, ubyte 3 ; lshr
ret int %tmp5
}