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| author | Tim Northover <tnorthover@apple.com> | 2014-04-04 14:49:30 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-04-04 14:49:30 +0000 |
| commit | 659e09e3729b903ee299300e4d29a482ce986bab (patch) | |
| tree | 9e7df90d53353b6a30255931ba24330a12afc4fa /test/CodeGen/ARM64 | |
| parent | 4a4d62bfb923f81d0cc8203bdca487a764bb0945 (diff) | |
| download | llvm-659e09e3729b903ee299300e4d29a482ce986bab.tar.gz llvm-659e09e3729b903ee299300e4d29a482ce986bab.tar.bz2 llvm-659e09e3729b903ee299300e4d29a482ce986bab.tar.xz | |
DAGLegalize: add last-ditch type-legalization for VSELECT.
When LLVM sees something like (v1iN (vselect v1i1, v1iN, v1iN)) it can
decide that the result is OK (v1i64 is legal on AArch64, for example)
but it still need scalarising because of that v1i1. There was no code
to do this though.
AArch64 and ARM64 have DAG combines to produce efficient code and
prevent that occuring in *most* such situations, but there are edge
cases that they miss. This adds a legalization to cope with that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205626 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM64')
| -rw-r--r-- | test/CodeGen/ARM64/neon-v1i1-setcc.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/neon-v1i1-setcc.ll b/test/CodeGen/ARM64/neon-v1i1-setcc.ll index a7e59fbc00..d7a0771f7b 100644 --- a/test/CodeGen/ARM64/neon-v1i1-setcc.ll +++ b/test/CodeGen/ARM64/neon-v1i1-setcc.ll @@ -50,6 +50,15 @@ define <1 x double> @test_select_v1i1_2(<1 x i64> %v1, <1 x i64> %v2, <1 x doubl ret <1 x double> %res } +define <1 x i64> @test_select_v1i1_3(i64 %lhs, i64 %rhs, <1 x i64> %v3) { +; CHECK-LABEL: test_select_v1i1_3: +; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}} + %tst = icmp eq i64 %lhs, %rhs + %evil = insertelement <1 x i1> undef, i1 %tst, i32 0 + %res = select <1 x i1> %evil, <1 x i64> zeroinitializer, <1 x i64> %v3 + ret <1 x i64> %res +} + define i32 @test_br_extr_cmp(<1 x i64> %v1, <1 x i64> %v2) { ; CHECK-LABEL: test_br_extr_cmp: ; CHECK: cmp x{{[0-9]+}}, x{{[0-9]+}} |