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Fix PromoteIntRes_TRUNCATE: Add support for cases where the

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source vector type is to be split while the target vector is to be promoted.
(eg: <4 x i64> -> <4 x i8> )


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133424 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2011-06-20 07:15:58 +00:00
parent 289a27946f
commit 4720611025
2 changed files with 39 additions and 4 deletions
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11
test/CodeGen/X86/promote-trunc.ll Normal file
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@@ -0,0 +1,11 @@
; RUN: llc -promote-elements < %s -march=x86-64
define<4 x i8> @func_8_64() {
%F = load <4 x i64>* undef
%G = trunc <4 x i64> %F to <4 x i8>
%H = load <4 x i64>* undef
%Y = trunc <4 x i64> %H to <4 x i8>
%T = add <4 x i8> %Y, %G
ret <4 x i8> %T
}