Enable the slp vectorizer in the gold plugin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220887 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/tools/gold/slp-vectorize.ll b/test/tools/gold/slp-vectorize.ll
new file mode 100644 (file)
index 0000000..d378902
--- /dev/null
+++ b/test/tools/gold/slp-vectorize.ll
@@ -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"
+
+define void @f(float* nocapture %x) {
+  %tmp = load float* %x, align 4
+  %add = fadd float %tmp, 1.000000e+00
+  store float %add, float* %x, align 4
+  %arrayidx1 = getelementptr inbounds float* %x, i64 1
+  %tmp1 = load float* %arrayidx1, align 4
+  %add2 = fadd float %tmp1, 1.000000e+00
+  store float %add2, float* %arrayidx1, align 4
+  %arrayidx3 = getelementptr inbounds float* %x, i64 2
+  %tmp2 = load float* %arrayidx3, align 4
+  %add4 = fadd float %tmp2, 1.000000e+00
+  store float %add4, float* %arrayidx3, align 4
+  %arrayidx5 = getelementptr inbounds float* %x, i64 3
+  %tmp3 = load float* %arrayidx5, align 4
+  %add6 = fadd float %tmp3, 1.000000e+00
+  store float %add6, float* %arrayidx5, align 4
+  ret void
+}

diff --git a/tools/gold/gold-plugin.cpp b/tools/gold/gold-plugin.cpp
index db21c1bd59d6d704f9b535cf26482e523d06a1a8..25089ba418813a6272db5a1c8f5a27213a21c547 100644 (file)
--- a/tools/gold/gold-plugin.cpp
+++ b/tools/gold/gold-plugin.cpp
@@ -677,6 +677,7 @@ static void runLTOPasses(Module &M, TargetMachine &TM) {
   PMB.VerifyInput = true;
   PMB.VerifyOutput = true;
   PMB.LoopVectorize = true;
+  PMB.SLPVectorize = true;
   PMB.populateLTOPassManager(passes, &TM);
   passes.run(M);
 }