llvm-6502/test/Transforms/ScalarRepl/vector_promote.ll
Chris Lattner 7809ecd5b0 rearrange how SRoA handles promotion of allocas to vectors.
With the new world order, it can handle cases where the first
store into the alloca is an element of the vector, instead of
requiring the first analyzed store to have the vector type 
itself.  This allows us to un-xfail 
test/CodeGen/X86/vec_ins_extract.ll.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:30:09 +00:00

65 lines
2.4 KiB
LLVM

; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | not grep alloca
; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep {load <4 x float>}
define void @test(<4 x float>* %F, float %f) {
entry:
%G = alloca <4 x float>, align 16 ; <<4 x float>*> [#uses=3]
%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
%tmp3 = add <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
store <4 x float> %tmp3, <4 x float>* %G
%G.upgrd.1 = getelementptr <4 x float>* %G, i32 0, i32 0 ; <float*> [#uses=1]
store float %f, float* %G.upgrd.1
%tmp4 = load <4 x float>* %G ; <<4 x float>> [#uses=2]
%tmp6 = add <4 x float> %tmp4, %tmp4 ; <<4 x float>> [#uses=1]
store <4 x float> %tmp6, <4 x float>* %F
ret void
}
define void @test2(<4 x float>* %F, float %f) {
entry:
%G = alloca <4 x float>, align 16 ; <<4 x float>*> [#uses=3]
%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
%tmp3 = add <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
store <4 x float> %tmp3, <4 x float>* %G
%tmp.upgrd.2 = getelementptr <4 x float>* %G, i32 0, i32 2 ; <float*> [#uses=1]
store float %f, float* %tmp.upgrd.2
%tmp4 = load <4 x float>* %G ; <<4 x float>> [#uses=2]
%tmp6 = add <4 x float> %tmp4, %tmp4 ; <<4 x float>> [#uses=1]
store <4 x float> %tmp6, <4 x float>* %F
ret void
}
define void @test3(<4 x float>* %F, float* %f) {
entry:
%G = alloca <4 x float>, align 16 ; <<4 x float>*> [#uses=2]
%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
%tmp3 = add <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
store <4 x float> %tmp3, <4 x float>* %G
%tmp.upgrd.3 = getelementptr <4 x float>* %G, i32 0, i32 2 ; <float*> [#uses=1]
%tmp.upgrd.4 = load float* %tmp.upgrd.3 ; <float> [#uses=1]
store float %tmp.upgrd.4, float* %f
ret void
}
define void @test4(<4 x float>* %F, float* %f) {
entry:
%G = alloca <4 x float>, align 16 ; <<4 x float>*> [#uses=2]
%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
%tmp3 = add <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
store <4 x float> %tmp3, <4 x float>* %G
%G.upgrd.5 = getelementptr <4 x float>* %G, i32 0, i32 0 ; <float*> [#uses=1]
%tmp.upgrd.6 = load float* %G.upgrd.5 ; <float> [#uses=1]
store float %tmp.upgrd.6, float* %f
ret void
}
define i32 @test5(float %X) { ;; should turn into bitcast.
%X_addr = alloca [4 x float]
%X1 = getelementptr [4 x float]* %X_addr, i32 0, i32 2
store float %X, float* %X1
%a = bitcast float* %X1 to i32*
%tmp = load i32* %a
ret i32 %tmp
}