llvm-6502/test/Analysis/ScalarEvolution/nsw.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

41 lines
1.5 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output | grep { --> {.*,+,.*}<bb>} | count 8
; The addrecs in this loop are analyzable only by using nsw information.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
define void @foo(double* %p) nounwind {
entry:
%tmp = load double* %p, align 8 ; <double> [#uses=1]
%tmp1 = fcmp ogt double %tmp, 2.000000e+00 ; <i1> [#uses=1]
br i1 %tmp1, label %bb.nph, label %return
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%i.01 = phi i32 [ %tmp8, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=3]
%tmp2 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
%tmp3 = getelementptr double* %p, i64 %tmp2 ; <double*> [#uses=1]
%tmp4 = load double* %tmp3, align 8 ; <double> [#uses=1]
%tmp5 = fmul double %tmp4, 9.200000e+00 ; <double> [#uses=1]
%tmp6 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
%tmp7 = getelementptr double* %p, i64 %tmp6 ; <double*> [#uses=1]
store double %tmp5, double* %tmp7, align 8
%tmp8 = add nsw i32 %i.01, 1 ; <i32> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%phitmp = sext i32 %tmp8 to i64 ; <i64> [#uses=1]
%tmp9 = getelementptr double* %p, i64 %phitmp ; <double*> [#uses=1]
%tmp10 = load double* %tmp9, align 8 ; <double> [#uses=1]
%tmp11 = fcmp ogt double %tmp10, 2.000000e+00 ; <i1> [#uses=1]
br i1 %tmp11, 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
}