Vendor import of llvm trunk r154661:

http://llvm.org/svn/llvm-project/llvm/trunk@r154661

1 files changed, 29 insertions, 0 deletions

diff --git a/test/Analysis/ScalarEvolution/trip-count11.ll b/test/Analysis/ScalarEvolution/trip-count11.ll
new file mode 100644
index 0000000..7191503
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/trip-count11.ll
@@ -0,0 +1,29 @@
+; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@foo.a = internal constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
+
+define i32 @foo() nounwind uwtable noinline {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
+; CHECK: --> %sum.0 Exits: 28
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %cmp = icmp ult i32 %i.0, 8
+  br i1 %cmp, label %for.inc, label %for.end
+
+for.inc:                                          ; preds = %for.cond
+  %idxprom = sext i32 %i.0 to i64
+  %arrayidx = getelementptr inbounds [8 x i32]* @foo.a, i64 0, i64 %idxprom
+  %0 = load i32* %arrayidx, align 4
+  %add = add nsw i32 %sum.0, %0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret i32 %sum.0
+}