llvm-6502/test/CodeGen/X86/mul-shift-reassoc.ll
Chris Lattner 01f45ca17b new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35432 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-28 18:03:14 +00:00

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414 B
LLVM

; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 | grep lea &&
; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 | not grep add
int %test(int %X, int %Y) {
; Push the shl through the mul to allow an LEA to be formed, instead
; of using a shift and add separately.
%tmp.2 = shl int %X, ubyte 1
%tmp.3 = mul int %tmp.2, %Y
%tmp.5 = add int %tmp.3, %Y
ret int %tmp.5
}