llvm/test/Transforms/InstCombine/shift-sra.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

20 lines
668 B
LLVM

; RUN: opt < %s -instcombine -S | \
; RUN: grep {lshr i32} | count 2
; RUN: opt < %s -instcombine -S | not grep ashr
define i32 @test1(i32 %X, i8 %A) {
%shift.upgrd.1 = zext i8 %A to i32 ; <i32> [#uses=1]
; can be logical shift.
%Y = ashr i32 %X, %shift.upgrd.1 ; <i32> [#uses=1]
%Z = and i32 %Y, 1 ; <i32> [#uses=1]
ret i32 %Z
}
define i32 @test2(i8 %tmp) {
%tmp3 = zext i8 %tmp to i32 ; <i32> [#uses=1]
%tmp4 = add i32 %tmp3, 7 ; <i32> [#uses=1]
%tmp5 = ashr i32 %tmp4, 3 ; <i32> [#uses=1]
ret i32 %tmp5
}