ARM Cost Model: Add a basic vectorization unrolling test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171931 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopVectorize/ARM/arm-unroll.ll b/test/Transforms/LoopVectorize/ARM/arm-unroll.ll
new file mode 100644 (file)
index 0000000..c8d307f
--- /dev/null
+++ b/test/Transforms/LoopVectorize/ARM/arm-unroll.ll
@@ -0,0 +1,32 @@
+; RUN: opt < %s  -loop-vectorize -mtriple=thumbv7-apple-ios3.0.0 -S | FileCheck %s
+; RUN: opt < %s  -loop-vectorize -mtriple=thumbv7-apple-ios3.0.0 -mcpu=swift -S | FileCheck %s --check-prefix=SWIFT
+
+target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
+target triple = "thumbv7-apple-ios3.0.0"
+
+;CHECK: @foo
+;CHECK: load <4 x i32>
+;CHECK-NOT: load <4 x i32>
+;CHECK: ret
+;SWIFT: @foo
+;SWIFT: load <4 x i32>
+;SWIFT: load <4 x i32>
+;SWIFT: ret
+define i32 @foo(i32* nocapture %A, i32 %n) nounwind readonly ssp {
+  %1 = icmp sgt i32 %n, 0
+  br i1 %1, label %.lr.ph, label %._crit_edge
+
+.lr.ph:                                           ; preds = %0, %.lr.ph
+  %i.02 = phi i32 [ %5, %.lr.ph ], [ 0, %0 ]
+  %sum.01 = phi i32 [ %4, %.lr.ph ], [ 0, %0 ]
+  %2 = getelementptr inbounds i32* %A, i32 %i.02
+  %3 = load i32* %2, align 4
+  %4 = add nsw i32 %3, %sum.01
+  %5 = add nsw i32 %i.02, 1
+  %exitcond = icmp eq i32 %5, %n
+  br i1 %exitcond, label %._crit_edge, label %.lr.ph
+
+._crit_edge:                                      ; preds = %.lr.ph, %0
+  %sum.0.lcssa = phi i32 [ 0, %0 ], [ %4, %.lr.ph ]
+  ret i32 %sum.0.lcssa
+}

diff --git a/test/Transforms/LoopVectorize/ARM/sanity.ll b/test/Transforms/LoopVectorize/ARM/sanity.ll
deleted file mode 100644 (file)
index 11c28a8..0000000
--- a/test/Transforms/LoopVectorize/ARM/sanity.ll
+++ /dev/null
@@ -1,25 +0,0 @@
-; RUN: opt < %s  -loop-vectorize -mtriple=thumbv7-apple-ios3.0.0 -S
-
-target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
-target triple = "thumbv7-apple-ios3.0.0"
-
-; Make sure that we are not crashing on ARM.
-
-define i32 @foo(i32* nocapture %A, i32 %n) nounwind readonly ssp {
-  %1 = icmp sgt i32 %n, 0
-  br i1 %1, label %.lr.ph, label %._crit_edge
-
-.lr.ph:                                           ; preds = %0, %.lr.ph
-  %i.02 = phi i32 [ %5, %.lr.ph ], [ 0, %0 ]
-  %sum.01 = phi i32 [ %4, %.lr.ph ], [ 0, %0 ]
-  %2 = getelementptr inbounds i32* %A, i32 %i.02
-  %3 = load i32* %2, align 4
-  %4 = add nsw i32 %3, %sum.01
-  %5 = add nsw i32 %i.02, 1
-  %exitcond = icmp eq i32 %5, %n
-  br i1 %exitcond, label %._crit_edge, label %.lr.ph
-
-._crit_edge:                                      ; preds = %.lr.ph, %0
-  %sum.0.lcssa = phi i32 [ 0, %0 ], [ %4, %.lr.ph ]
-  ret i32 %sum.0.lcssa
-}