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Revert r140097, working on a better approach

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140203 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2011-09-20 23:19:29 +00:00
parent 5f2318e065
commit f4b841d4e2
2 changed files with 0 additions and 22 deletions
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15
lib/Target/X86/X86InstrSSE.td
View File

@ -157,21 +157,6 @@ def : Pat<(insert_subvector undef, (v8i16 VR128:$src), (i32 0)),
def : Pat<(insert_subvector undef, (v16i8 VR128:$src), (i32 0)),
(INSERT_SUBREG (v32i8 (IMPLICIT_DEF)), VR128:$src, sub_xmm)>;
// Inserting a 128-bit undef vector into the high part of a 256-bit
// vector should return the 256-bit vector itself.
def : Pat<(insert_subvector (v8i32 VR256:$src), undef, (i32 4)),
(v8i32 VR256:$src)>;
def : Pat<(insert_subvector (v8f32 VR256:$src), undef, (i32 4)),
(v8f32 VR256:$src)>;
def : Pat<(insert_subvector (v4i64 VR256:$src), undef, (i32 4)),
(v4i64 VR256:$src)>;
def : Pat<(insert_subvector (v4f64 VR256:$src), undef, (i32 4)),
(v4f64 VR256:$src)>;
def : Pat<(insert_subvector (v16i16 VR256:$src), undef, (i32 4)),
(v16i16 VR256:$src)>;
def : Pat<(insert_subvector (v32i8 VR256:$src), undef, (i32 4)),
(v32i8 VR256:$src)>;
// Implicitly promote a 32-bit scalar to a vector.
def : Pat<(v4f32 (scalar_to_vector FR32:$src)),
(INSERT_SUBREG (v4f32 (IMPLICIT_DEF)), FR32:$src, sub_ss)>;

7
test/CodeGen/X86/avx-vinsertf128.ll
View File

@ -37,10 +37,3 @@ allocas:
ret void
}
; CHECK: _C
; CHECK-NOT: vinsertf128 $1
define <4 x i32> @C(<4 x i32> %v1) nounwind readonly {
%1 = shufflevector <4 x i32> %v1, <4 x i32> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%2 = shufflevector <8 x i32> %1, <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
ret <4 x i32> %2
}