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| author | Hal Finkel <hfinkel@anl.gov> | 2012-06-16 20:34:06 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-06-16 20:34:06 +0000 |
| commit | ab4684e26fe21857d8c8bc6ba7a5234c35117c83 (patch) | |
| tree | 8d637510704bb283fb03238d20633550f3bc02a3 /test/Transforms/BBVectorize | |
| parent | 7b4ff9343d911a1b9c76c512787beb7a45f8270d (diff) | |
| download | llvm-ab4684e26fe21857d8c8bc6ba7a5234c35117c83.tar.gz llvm-ab4684e26fe21857d8c8bc6ba7a5234c35117c83.tar.bz2 llvm-ab4684e26fe21857d8c8bc6ba7a5234c35117c83.tar.xz | |
Teach BBVectorize to combine, when possible, or discard metadata when fusing instructions.
The present implementation handles only TBAA and FP metadata, discarding everything else.
For debug metadata, the current behavior is maintained (the debug metadata associated with
one of the instructions will be kept, discarding that attached to the other).
This should address PR 13040.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158606 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/BBVectorize')
| -rw-r--r-- | test/Transforms/BBVectorize/metadata.ll | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/Transforms/BBVectorize/metadata.ll b/test/Transforms/BBVectorize/metadata.ll new file mode 100644 index 0000000000..1e3aaa127a --- /dev/null +++ b/test/Transforms/BBVectorize/metadata.ll @@ -0,0 +1,49 @@ +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" +; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -S | FileCheck %s + +; Simple 3-pair chain with loads and stores (with fpmath) +define void @test1(double* %a, double* %b, double* %c) nounwind uwtable readonly { +entry: + %i0 = load double* %a, align 8 + %i1 = load double* %b, align 8 + %mul = fmul double %i0, %i1, !fpmath !2 + %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, !fpmath !3 + store double %mul, double* %c, align 8 + %arrayidx5 = getelementptr inbounds double* %c, i64 1 + store double %mul5, double* %arrayidx5, align 8 + ret void +; CHECK: @test1 +; CHECK: !fpmath +; CHECK: ret void +} + +; Simple 3-pair chain with loads and stores (ints with range) +define void @test2(i64* %a, i64* %b, i64* %c) nounwind uwtable readonly { +entry: + %i0 = load i64* %a, align 8, !range !0 + %i1 = load i64* %b, align 8 + %mul = mul i64 %i0, %i1 + %arrayidx3 = getelementptr inbounds i64* %a, i64 1 + %i3 = load i64* %arrayidx3, align 8, !range !1 + %arrayidx4 = getelementptr inbounds i64* %b, i64 1 + %i4 = load i64* %arrayidx4, align 8 + %mul5 = mul i64 %i3, %i4 + store i64 %mul, i64* %c, align 8 + %arrayidx5 = getelementptr inbounds i64* %c, i64 1 + store i64 %mul5, i64* %arrayidx5, align 8 + ret void +; CHECK: @test2 +; CHECK-NOT: !range +; CHECK: ret void +} + +!0 = metadata !{i64 0, i64 2} +!1 = metadata !{i64 3, i64 5} + +!2 = metadata !{ float 5.0 } +!3 = metadata !{ float 2.5 } + |