[llvm] r220886 - Enable the loop vectorizer in the gold plugin.

[Rafael Espindola]

Author: rafael
Date: Wed Oct 29 19:11:24 2014
New Revision: 220886

URL: http://llvm.org/viewvc/llvm-project?rev=220886&view=rev
Log:
Enable the loop vectorizer in the gold plugin.

Added:
    llvm/trunk/test/tools/gold/vectorize.ll
Modified:
    llvm/trunk/tools/gold/gold-plugin.cpp

Added: llvm/trunk/test/tools/gold/vectorize.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/gold/vectorize.ll?rev=220886&view=auto
==============================================================================
--- llvm/trunk/test/tools/gold/vectorize.ll (added)
+++ llvm/trunk/test/tools/gold/vectorize.ll Wed Oct 29 19:11:24 2014
@@ -0,0 +1,30 @@
+; RUN: llvm-as %s -o %t.o
+
+; RUN: ld -plugin %llvmshlibdir/LLVMgold.so \
+; RUN:    --plugin-opt=save-temps \
+; RUN:    -shared %t.o -o %t2.o
+; RUN: llvm-dis %t2.o.opt.bc -o - | FileCheck %s
+
+; test that the vectorizer is run.
+; CHECK: fadd <4 x float>
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @f(float* nocapture %x, i64 %n) {
+bb:
+  br label %bb1
+
+bb1:
+  %i.0 = phi i64 [ 0, %bb ], [ %tmp4, %bb1 ]
+  %tmp = getelementptr inbounds float* %x, i64 %i.0
+  %tmp2 = load float* %tmp, align 4
+  %tmp3 = fadd float %tmp2, 1.000000e+00
+  store float %tmp3, float* %tmp, align 4
+  %tmp4 = add nsw i64 %i.0, 1
+  %tmp5 = icmp slt i64 %tmp4, %n
+  br i1 %tmp5, label %bb1, label %bb6
+
+bb6:
+  ret void
+}

Modified: llvm/trunk/tools/gold/gold-plugin.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/gold/gold-plugin.cpp?rev=220886&r1=220885&r2=220886&view=diff
==============================================================================
--- llvm/trunk/tools/gold/gold-plugin.cpp (original)
+++ llvm/trunk/tools/gold/gold-plugin.cpp Wed Oct 29 19:11:24 2014
@@ -676,6 +676,7 @@ static void runLTOPasses(Module &M, Targ
   PMB.Inliner = createFunctionInliningPass();
   PMB.VerifyInput = true;
   PMB.VerifyOutput = true;
+  PMB.LoopVectorize = true;
   PMB.populateLTOPassManager(passes, &TM);
   passes.run(M);
 }