Revert r251291, "Loop Vectorizer - skipping "bitcast" before GEP"

[oota-llvm.git] / test / Transforms / LoopVectorize / X86 / gcc-examples.ll

diff --git a/test/Transforms/LoopVectorize/X86/gcc-examples.ll b/test/Transforms/LoopVectorize/X86/gcc-examples.ll
index 574c529834ac6a86ac361d26ab4d98557fe41e97..c581f4bf2a630e41bb028139693bdef42800d366 100644 (file)
--- a/test/Transforms/LoopVectorize/X86/gcc-examples.ll
+++ b/test/Transforms/LoopVectorize/X86/gcc-examples.ll
@@ -1,4 +1,5 @@
-; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -dce -instcombine -licm -S | FileCheck %s
+; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -dce -instcombine -S | FileCheck %s
+; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -force-vector-interleave=0 -dce -instcombine -S | FileCheck %s -check-prefix=UNROLL
 
 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-apple-macosx10.8.0"
@@ -8,22 +9,31 @@ target triple = "x86_64-apple-macosx10.8.0"
 @a = common global [2048 x i32] zeroinitializer, align 16
 
 ; Select VF = 8;
-;CHECK: @example1
-;CHECK: load <8 x i32>
-;CHECK: add nsw <8 x i32>
-;CHECK: store <8 x i32>
+;CHECK-LABEL: @example1(
+;CHECK: load <4 x i32>
+;CHECK: add nsw <4 x i32>
+;CHECK: store <4 x i32>
 ;CHECK: ret void
+
+;UNROLL-LABEL: @example1(
+;UNROLL: load <4 x i32>
+;UNROLL: load <4 x i32>
+;UNROLL: add nsw <4 x i32>
+;UNROLL: add nsw <4 x i32>
+;UNROLL: store <4 x i32>
+;UNROLL: store <4 x i32>
+;UNROLL: ret void
 define void @example1() nounwind uwtable ssp {
   br label %1
 
 ; <label>:1                                       ; preds = %1, %0
   %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
-  %2 = getelementptr inbounds [2048 x i32]* @b, i64 0, i64 %indvars.iv
-  %3 = load i32* %2, align 4
-  %4 = getelementptr inbounds [2048 x i32]* @c, i64 0, i64 %indvars.iv
-  %5 = load i32* %4, align 4
+  %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv
+  %3 = load i32, i32* %2, align 4
+  %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv
+  %5 = load i32, i32* %4, align 4
   %6 = add nsw i32 %5, %3
-  %7 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %indvars.iv
+  %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv
   store i32 %6, i32* %7, align 4
   %indvars.iv.next = add i64 %indvars.iv, 1
   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
@@ -34,22 +44,27 @@ define void @example1() nounwind uwtable ssp {
   ret void
 }
 
-
-; Select VF=4 because sext <8 x i1> to <8 x i32> is expensive. 
-;CHECK: @example10b
+; Select VF=4 because sext <8 x i1> to <8 x i32> is expensive.
+;CHECK-LABEL: @example10b(
 ;CHECK: load <4 x i16>
 ;CHECK: sext <4 x i16>
 ;CHECK: store <4 x i32>
 ;CHECK: ret void
+;UNROLL-LABEL: @example10b(
+;UNROLL: load <4 x i16>
+;UNROLL: load <4 x i16>
+;UNROLL: store <4 x i32>
+;UNROLL: store <4 x i32>
+;UNROLL: ret void
 define void @example10b(i16* noalias nocapture %sa, i16* noalias nocapture %sb, i16* noalias nocapture %sc, i32* noalias nocapture %ia, i32* noalias nocapture %ib, i32* noalias nocapture %ic) nounwind uwtable ssp {
   br label %1
 
 ; <label>:1                                       ; preds = %1, %0
   %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
-  %2 = getelementptr inbounds i16* %sb, i64 %indvars.iv
-  %3 = load i16* %2, align 2
+  %2 = getelementptr inbounds i16, i16* %sb, i64 %indvars.iv
+  %3 = load i16, i16* %2, align 2
   %4 = sext i16 %3 to i32
-  %5 = getelementptr inbounds i32* %ia, i64 %indvars.iv
+  %5 = getelementptr inbounds i32, i32* %ia, i64 %indvars.iv
   store i32 %4, i32* %5, align 4
   %indvars.iv.next = add i64 %indvars.iv, 1
   %lftr.wideiv = trunc i64 %indvars.iv.next to i32