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| author | Mon P Wang <wangmp@apple.com> | 2009-04-03 02:43:30 +0000 |
|---|---|---|
| committer | Mon P Wang <wangmp@apple.com> | 2009-04-03 02:43:30 +0000 |
| commit | 1e95580925b173ea13fbe77c0eb299f672391656 (patch) | |
| tree | 73b102baf920cd2081ebc835f6e3b46558990c1c /test/CodeGen/X86/vec_i64.ll | |
| parent | f436fed4124af0ece0f7125f0963f42b859ca36c (diff) | |
| download | llvm-1e95580925b173ea13fbe77c0eb299f672391656.tar.gz llvm-1e95580925b173ea13fbe77c0eb299f672391656.tar.bz2 llvm-1e95580925b173ea13fbe77c0eb299f672391656.tar.xz | |
Added a x86 dag combine to increase the chances to use a
movq for v2i64 on x86-32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68368 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/vec_i64.ll')
| -rw-r--r-- | test/CodeGen/X86/vec_i64.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vec_i64.ll b/test/CodeGen/X86/vec_i64.ll new file mode 100644 index 0000000000..3939af57c8 --- /dev/null +++ b/test/CodeGen/X86/vec_i64.ll @@ -0,0 +1,22 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -o %t -f +; RUN: grep movq %t | count 2 + +; Used movq to load i64 into a v2i64 when the top i64 is 0. + +define <2 x i64> @foo1(i64* %y) nounwind { +entry: + %tmp1 = load i64* %y, align 8 ; <i64> [#uses=1] + %s2v = insertelement <2 x i64> undef, i64 %tmp1, i32 0 + %loadl = shufflevector <2 x i64> zeroinitializer, <2 x i64> %s2v, <2 x i32> <i32 2, i32 1> + ret <2 x i64> %loadl +} + + +define <4 x float> @foo2(i64* %p) nounwind { +entry: + %load = load i64* %p + %s2v = insertelement <2 x i64> undef, i64 %load, i32 0 + %loadl = shufflevector <2 x i64> zeroinitializer, <2 x i64> %s2v, <2 x i32> <i32 2, i32 1> + %0 = bitcast <2 x i64> %loadl to <4 x float> + ret <4 x float> %0 +} |