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llvm-project/llvm/test/CodeGen/X86/twoaddr-pass-sink.ll

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Revert the test moves from 176733. Use "REQUIRES: asserts" instead. llvm-svn: 176873
2013-03-13 00:27:52 +08:00
; REQUIRES: asserts
Convert the uses of '|&' to use '2>&1 |' instead, which works on old versions of Bash. In addition, I can back out the change to the lit built-in shell test runner to support this. This should fix the majority of fallout on Darwin, but I suspect there will be a few straggling issues. llvm-svn: 159544
2012-07-03 02:37:59 +08:00
; RUN: llc < %s -march=x86 -mattr=+sse2 -stats 2>&1 | grep "Number of 3-address instructions sunk"
TwoAddressInstructionPass enhancement. After it converts a two address instruction into a 3-address one, sink it past the instruction that kills the read-mod-write register if its definition is used past the kill. This reduces the number of live register by one. llvm-svn: 48333
2008-03-13 14:37:55 +08:00
define void @t2(<2 x i64>* %vDct, <2 x i64>* %vYp, i8* %skiplist, <2 x i64> %a1) nounwind {
entry:
%tmp25 = bitcast <2 x i64> %a1 to <8 x i16> ; <<8 x i16>> [#uses=1]
br label %bb
bb: ; preds = %bb, %entry
%skiplist_addr.0.rec = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=3]
%vYp_addr.0.rec = shl i32 %skiplist_addr.0.rec, 3 ; <i32> [#uses=3]
%vDct_addr.0 = getelementptr <2 x i64>* %vDct, i32 %vYp_addr.0.rec ; <<2 x i64>*> [#uses=1]
%vYp_addr.0 = getelementptr <2 x i64>* %vYp, i32 %vYp_addr.0.rec ; <<2 x i64>*> [#uses=1]
%skiplist_addr.0 = getelementptr i8* %skiplist, i32 %skiplist_addr.0.rec ; <i8*> [#uses=1]
%vDct_addr.0.sum43 = or i32 %vYp_addr.0.rec, 1 ; <i32> [#uses=1]
%tmp7 = getelementptr <2 x i64>* %vDct, i32 %vDct_addr.0.sum43 ; <<2 x i64>*> [#uses=1]
%tmp8 = load <2 x i64>* %tmp7, align 16 ; <<2 x i64>> [#uses=1]
%tmp11 = load <2 x i64>* %vDct_addr.0, align 16 ; <<2 x i64>> [#uses=1]
%tmp13 = bitcast <2 x i64> %tmp8 to <8 x i16> ; <<8 x i16>> [#uses=1]
%tmp15 = bitcast <2 x i64> %tmp11 to <8 x i16> ; <<8 x i16>> [#uses=1]
%tmp16 = shufflevector <8 x i16> %tmp15, <8 x i16> %tmp13, <8 x i32> < i32 0, i32 8, i32 1, i32 9, i32 2, i32 10, i32 3, i32 11 > ; <<8 x i16>> [#uses=1]
%tmp26 = mul <8 x i16> %tmp25, %tmp16 ; <<8 x i16>> [#uses=1]
%tmp27 = bitcast <8 x i16> %tmp26 to <2 x i64> ; <<2 x i64>> [#uses=1]
store <2 x i64> %tmp27, <2 x i64>* %vYp_addr.0, align 16
%tmp37 = load i8* %skiplist_addr.0, align 1 ; <i8> [#uses=1]
%tmp38 = icmp eq i8 %tmp37, 0 ; <i1> [#uses=1]
%indvar.next = add i32 %skiplist_addr.0.rec, 1 ; <i32> [#uses=1]
br i1 %tmp38, label %return, label %bb
return: ; preds = %bb
ret void
}