llvm/test/Analysis/ScalarEvolution/2008-07-12-UnneededSelect1.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

37 lines
1.1 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output |& not grep smax
; PR2261
@lut = common global [256 x i8] zeroinitializer, align 32 ; <[256 x i8]*> [#uses=1]
define void @foo(i32 %count, i32* %srcptr, i32* %dstptr) nounwind {
entry:
icmp sgt i32 %count, 0 ; <i1>:0 [#uses=1]
br i1 %0, label %bb.nph, label %return
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%j.01 = phi i32 [ %8, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=1]
load i32* %srcptr, align 4 ; <i32>:1 [#uses=2]
and i32 %1, 255 ; <i32>:2 [#uses=1]
and i32 %1, -256 ; <i32>:3 [#uses=1]
getelementptr [256 x i8]* @lut, i32 0, i32 %2 ; <i8*>:4 [#uses=1]
load i8* %4, align 1 ; <i8>:5 [#uses=1]
zext i8 %5 to i32 ; <i32>:6 [#uses=1]
or i32 %6, %3 ; <i32>:7 [#uses=1]
store i32 %7, i32* %dstptr, align 4
add i32 %j.01, 1 ; <i32>:8 [#uses=2]
br label %bb1
bb1: ; preds = %bb
icmp slt i32 %8, %count ; <i1>:9 [#uses=1]
br i1 %9, label %bb, label %bb1.return_crit_edge
bb1.return_crit_edge: ; preds = %bb1
br label %return
return: ; preds = %bb1.return_crit_edge, %entry
ret void
}