Fix the order of the operands in the llvm.fma intrinsic patterns for ARM,

[oota-llvm.git] / test / Analysis / ScalarEvolution / nsw.ll

diff --git a/test/Analysis/ScalarEvolution/nsw.ll b/test/Analysis/ScalarEvolution/nsw.ll
index c31edabf38eeeafa3a777912d585c43b95748086..659cf4f8da972a1691784b2f67748964a96d975a 100644 (file)
--- a/test/Analysis/ScalarEvolution/nsw.ll
+++ b/test/Analysis/ScalarEvolution/nsw.ll
@@ -1,10 +1,11 @@
-; RUN: opt < %s -analyze -scalar-evolution -disable-output | grep { -->  {.*,+,.*}<bb>} | count 8
+; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
 
 ; 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 {
+; CHECK: Classifying expressions for: @test1
+define void @test1(double* %p) nounwind {
 entry:
        %tmp = load double* %p, align 8         ; <double> [#uses=1]
        %tmp1 = fcmp ogt double %tmp, 2.000000e+00              ; <i1> [#uses=1]
@@ -15,19 +16,29 @@ bb.nph:             ; preds = %entry
 
 bb:            ; preds = %bb1, %bb.nph
        %i.01 = phi i32 [ %tmp8, %bb1 ], [ 0, %bb.nph ]         ; <i32> [#uses=3]
+; CHECK: %i.01
+; CHECK-NEXT: -->  {0,+,1}<nuw><nsw><%bb>
        %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]
+; CHECK: %tmp7
+; CHECK-NEXT:   -->  {%p,+,8}<%bb>
        store double %tmp5, double* %tmp7, align 8
        %tmp8 = add nsw i32 %i.01, 1            ; <i32> [#uses=2]
+; CHECK: %tmp8
+; CHECK-NEXT: -->  {1,+,1}<nuw><nsw><%bb>
        br label %bb1
 
 bb1:           ; preds = %bb
        %phitmp = sext i32 %tmp8 to i64         ; <i64> [#uses=1]
+; CHECK: %phitmp
+; CHECK-NEXT: -->  {1,+,1}<nuw><nsw><%bb>
        %tmp9 = getelementptr double* %p, i64 %phitmp           ; <double*> [#uses=1]
+; CHECK: %tmp9
+; CHECK-NEXT:  -->  {(8 + %p),+,8}<%bb>
        %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
@@ -38,3 +49,76 @@ bb1.return_crit_edge:                ; preds = %bb1
 return:                ; preds = %bb1.return_crit_edge, %entry
        ret void
 }
+
+; CHECK: Classifying expressions for: @test2
+define void @test2(i32* %begin, i32* %end) ssp {
+entry:
+  %cmp1.i.i = icmp eq i32* %begin, %end
+  br i1 %cmp1.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.lr.ph.i.i
+
+for.body.lr.ph.i.i:                               ; preds = %entry
+  br label %for.body.i.i
+
+for.body.i.i:                                     ; preds = %for.body.i.i, %for.body.lr.ph.i.i
+  %__first.addr.02.i.i = phi i32* [ %begin, %for.body.lr.ph.i.i ], [ %ptrincdec.i.i, %for.body.i.i ]
+; CHECK: %__first.addr.02.i.i
+; CHECK-NEXT: -->  {%begin,+,4}<nw><%for.body.i.i>
+  store i32 0, i32* %__first.addr.02.i.i, align 4
+  %ptrincdec.i.i = getelementptr inbounds i32* %__first.addr.02.i.i, i64 1
+; CHECK: %ptrincdec.i.i
+; CHECK-NEXT: -->  {(4 + %begin),+,4}<nw><%for.body.i.i>
+  %cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end
+  br i1 %cmp.i.i, label %for.cond.for.end_crit_edge.i.i, label %for.body.i.i
+
+for.cond.for.end_crit_edge.i.i:                   ; preds = %for.body.i.i
+  br label %_ZSt4fillIPiiEvT_S1_RKT0_.exit
+
+_ZSt4fillIPiiEvT_S1_RKT0_.exit:                   ; preds = %entry, %for.cond.for.end_crit_edge.i.i
+  ret void
+}
+
+; Various checks for inbounds geps.
+define void @test3(i32* %begin, i32* %end) nounwind ssp {
+entry:
+  %cmp7.i.i = icmp eq i32* %begin, %end
+  br i1 %cmp7.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i
+
+for.body.i.i:                                     ; preds = %entry, %for.body.i.i
+  %indvar.i.i = phi i64 [ %tmp, %for.body.i.i ], [ 0, %entry ]
+; CHECK: %indvar.i.i
+; CHECK: {0,+,1}<nuw><nsw><%for.body.i.i>
+  %tmp = add nsw i64 %indvar.i.i, 1
+; CHECK: %tmp =
+; CHECK: {1,+,1}<nuw><nsw><%for.body.i.i>
+  %ptrincdec.i.i = getelementptr inbounds i32* %begin, i64 %tmp
+; CHECK: %ptrincdec.i.i =
+; CHECK: {(4 + %begin),+,4}<nsw><%for.body.i.i>
+  %__first.addr.08.i.i = getelementptr inbounds i32* %begin, i64 %indvar.i.i
+; CHECK: %__first.addr.08.i.i
+; CHECK: {%begin,+,4}<nsw><%for.body.i.i>
+  store i32 0, i32* %__first.addr.08.i.i, align 4
+  %cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end
+  br i1 %cmp.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i
+; CHECK: Loop %for.body.i.i: backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4)
+; CHECK: Loop %for.body.i.i: max backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4)
+_ZSt4fillIPiiEvT_S1_RKT0_.exit:                   ; preds = %for.body.i.i, %entry
+  ret void
+}
+
+; A single AddExpr exists for (%a + %b), which is not always <nsw>.
+; CHECK: @addnsw
+; CHECK-NOT: --> (%a + %b)<nsw>
+define i32 @addnsw(i32 %a, i32 %b) nounwind ssp {
+entry:
+  %tmp = add i32 %a, %b
+  %cmp = icmp sgt i32 %tmp, 0
+  br i1 %cmp, label %greater, label %exit
+
+greater:
+  %tmp2 = add nsw i32 %a, %b
+  br label %exit
+
+exit:
+  %result = phi i32 [ %a, %entry ], [ %tmp2, %greater ]
+  ret i32 %result
+}