diff options
| -rw-r--r-- | lib/Transforms/Vectorize/SLPVectorizer.cpp | 5 | ||||
| -rw-r--r-- | test/Transforms/SLPVectorizer/X86/implicitfloat.ll | 25 |
2 files changed, 30 insertions, 0 deletions
diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp index db1a91ec9e..8f23a976f9 100644 --- a/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -1557,6 +1557,11 @@ struct SLPVectorizer : public FunctionPass { if (!DL) return false; + // Don't vectorize when the attribute NoImplicitFloat is used. + if (F.getAttributes().hasAttribute(AttributeSet::FunctionIndex, + Attribute::NoImplicitFloat)) + return false; + DEBUG(dbgs() << "SLP: Analyzing blocks in " << F.getName() << ".\n"); // Use the bollom up slp vectorizer to construct chains that start with diff --git a/test/Transforms/SLPVectorizer/X86/implicitfloat.ll b/test/Transforms/SLPVectorizer/X86/implicitfloat.ll new file mode 100644 index 0000000000..f63f2683b1 --- /dev/null +++ b/test/Transforms/SLPVectorizer/X86/implicitfloat.ll @@ -0,0 +1,25 @@ +; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | 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-apple-macosx10.8.0" + +; Don't vectorize when noimplicitfloat is used. +; CHECK: test1 +; CHECK-NOT: store <2 x double> +; CHECK: ret +define void @test1(double* %a, double* %b, double* %c) noimplicitfloat { ; <------ noimplicitfloat attribute here! +entry: + %i0 = load double* %a, align 8 + %i1 = load double* %b, align 8 + %mul = fmul double %i0, %i1 + %arrayidx3 = getelementptr inbounds double* %a, i64 1 + %i3 = load double* %arrayidx3, align 8 + %arrayidx4 = getelementptr inbounds double* %b, i64 1 + %i4 = load double* %arrayidx4, align 8 + %mul5 = fmul double %i3, %i4 + store double %mul, double* %c, align 8 + %arrayidx5 = getelementptr inbounds double* %c, i64 1 + store double %mul5, double* %arrayidx5, align 8 + ret void +} + |