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Add tests for performing GVNPRE on the three vector-specific instructions.

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llvm-svn: 37744
This commit is contained in:
Owen Anderson 2007-06-27 04:06:32 +00:00
parent f74e333161
commit 0217ca66eb
3 changed files with 54 additions and 0 deletions
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18
test/Transforms/GVNPRE/extractelement.ll Normal file
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis | grep b.gvnpre
define i32 @extract() {
entry: ; preds = %cond_false, %entry
%foo = add <2 x i32> < i32 1, i32 1 >, < i32 1, i32 1 >
br i1 true, label %cond_true, label %cond_false
cond_true:
br label %end
cond_false:
%a = extractelement <2 x i32> %foo, i32 0
br label %end
end:
%b = extractelement <2 x i32> %foo, i32 0
ret i32 %b
}

18
test/Transforms/GVNPRE/insertelement.ll Normal file
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis | grep b.gvnpre
define i32 @extract() {
entry: ; preds = %cond_false, %entry
%foo = add <2 x i32> < i32 1, i32 1 >, < i32 1, i32 1 >
br i1 true, label %cond_true, label %cond_false
cond_true:
br label %end
cond_false:
%a = insertelement <2 x i32> %foo, i32 0, i32 3
br label %end
end:
%b = insertelement <2 x i32> %foo, i32 0, i32 3
ret i32 0
}

18
test/Transforms/GVNPRE/shufflevector.ll Normal file
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis | grep b.gvnpre
define i32 @extract() {
entry: ; preds = %cond_false, %entry
%foo = add <2 x i32> < i32 1, i32 1 >, < i32 1, i32 1 >
br i1 true, label %cond_true, label %cond_false
cond_true:
br label %end
cond_false:
%a = shufflevector <2 x i32> %foo, <2 x i32> undef, <2 x i32> < i32 0, i32 1 >
br label %end
end:
%b = shufflevector <2 x i32> %foo, <2 x i32> undef, <2 x i32> < i32 0, i32 1 >
ret i32 0
}