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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-06-07 06:52:44 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-06-07 06:52:44 +0000 |
| commit | 7a5e55509b99d579d56d126a7b503ec6fe153a8f (patch) | |
| tree | a75cc13d22340b807d3939f42886d26cf476aaf9 /test/CodeGen/X86/vec_loadsingles.ll | |
| parent | dcef849ab0f1f8deec2f9bad0a8f0371e88dc713 (diff) | |
| download | llvm-7a5e55509b99d579d56d126a7b503ec6fe153a8f.tar.gz llvm-7a5e55509b99d579d56d126a7b503ec6fe153a8f.tar.bz2 llvm-7a5e55509b99d579d56d126a7b503ec6fe153a8f.tar.xz | |
Slightly generalize the code that handles shuffles of consecutive loads
on x86 to handle more cases. Fix a bug in said code that would cause it
to read past the end of an object. Rewrite the code in
SelectionDAGLegalize::ExpandBUILD_VECTOR to be a bit more general.
Remove PerformBuildVectorCombine, which is no longer necessary with
these changes. In addition to simplifying the code, with this change,
we can now catch a few more cases of consecutive loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73012 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/vec_loadsingles.ll')
| -rw-r--r-- | test/CodeGen/X86/vec_loadsingles.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vec_loadsingles.ll b/test/CodeGen/X86/vec_loadsingles.ll new file mode 100644 index 0000000000..67122763ec --- /dev/null +++ b/test/CodeGen/X86/vec_loadsingles.ll @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep movq + +define <4 x float> @a(<4 x float> %a, float* nocapture %p) nounwind readonly { +entry: + %tmp1 = load float* %p + %vecins = insertelement <4 x float> undef, float %tmp1, i32 0 + %add.ptr = getelementptr float* %p, i32 1 + %tmp5 = load float* %add.ptr + %vecins7 = insertelement <4 x float> %vecins, float %tmp5, i32 1 + ret <4 x float> %vecins7 +} + |