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Teach PatternMatch that splat vectors could be floating point as well as

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integer. Fixes PR9228!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125613 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2011-02-15 23:13:23 +00:00
parent 738a00eb86
commit 8a670edf1b
2 changed files with 32 additions and 3 deletions
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28
test/Transforms/InstCombine/vector-casts.ll
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@@ -121,3 +121,31 @@ define <2 x double> @fc(<2 x double> %t) {
%b = sitofp <2 x i64> %a to <2 x double>
ret <2 x double> %b
}
; PR9228
; This was a crasher, so no CHECK statements.
define <4 x float> @f(i32 %a) nounwind alwaysinline {
; CHECK: @f
entry:
%dim = insertelement <4 x i32> undef, i32 %a, i32 0
%dim30 = insertelement <4 x i32> %dim, i32 %a, i32 1
%dim31 = insertelement <4 x i32> %dim30, i32 %a, i32 2
%dim32 = insertelement <4 x i32> %dim31, i32 %a, i32 3
%offset_ptr = getelementptr <4 x float>* null, i32 1
%offset_int = ptrtoint <4 x float>* %offset_ptr to i64
%sizeof32 = trunc i64 %offset_int to i32
%smearinsert33 = insertelement <4 x i32> undef, i32 %sizeof32, i32 0
%smearinsert34 = insertelement <4 x i32> %smearinsert33, i32 %sizeof32, i32 1
%smearinsert35 = insertelement <4 x i32> %smearinsert34, i32 %sizeof32, i32 2
%smearinsert36 = insertelement <4 x i32> %smearinsert35, i32 %sizeof32, i32 3
%delta_scale = mul <4 x i32> %dim32, %smearinsert36
%offset_delta = add <4 x i32> zeroinitializer, %delta_scale
%offset_varying_delta = add <4 x i32> %offset_delta, undef
ret <4 x float> undef
}