llvm-mirror/test/CodeGen/X86/mul-remat.ll

; RUN: llc < %s -march=x86 | grep mov | count 1
; PR1874
	
define i32 @test(i32 %a, i32 %b) {
entry:
	%tmp3 = mul i32 %b, %a
	ret i32 %tmp3
}
Eliminate more uses of llvm-as and llvm-dis. llvm-svn: 81290 2009-09-09 01:54:48 +02:00			`; RUN: llc < %s -march=x86 \| grep mov \| count 1`
Don't mark scalar integer multiplication as Expand on x86, since x86 has plain one-result scalar integer multiplication instructions. This avoids expanding such instructions into MUL_LOHI sequences that must be special-cased at isel time, and avoids the problem with that code that provented memory operands from being folded. This fixes PR1874, addressesing the most common case. The uncommon cases of optimizing multiply-high operations will require work in DAGCombiner. llvm-svn: 47277 2008-02-18 18:55:26 +01:00			`; PR1874`

			`define i32 @test(i32 %a, i32 %b) {`
			`entry:`
			`%tmp3 = mul i32 %b, %a`
			`ret i32 %tmp3`
			`}`