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Add two new patterns that instcombine should or does handle

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llvm-svn: 2563
This commit is contained in:
Chris Lattner 2002-05-08 23:15:01 +00:00
parent a39fc03021
commit 70dd3548b3
1 changed files with 12 additions and 0 deletions
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12
test/Regression/Transforms/InstCombine/sub.ll
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@ -23,3 +23,15 @@ int "test3"(int %A) {
%C = sub int 0, %B ; C = -B = A
ret int %C
}
int "test4"(int %A, int %x) {
%B = sub int 0, %A
%C = sub int %x, %B
ret int %C
}
int "test5"(int %A, int %B, int %C) {
%D = sub int %B, %C
%E = sub int %A, %D
ret int %E
}