; RUN: llc < %s -mtriple=i386-pc-linux-gnu -mattr=+sse2
; RUN: llc < %s -mtriple=i386-pc-linux-gnu -mattr=+sse2 -relocation-model=pic -disable-fp-elim
; PR3154
define void @ff_flac_compute_autocorr_sse2(i32* %data, i32 %len, i32 %lag, double* %autoc) nounwind {
entry:
%c = alloca double, align 8 ; <double*> [#uses=2]
%0 = add i32 %len, 2 ; <i32> [#uses=1]
%1 = add i32 %0, %lag ; <i32> [#uses=1]
%2 = alloca double, i32 %1 ; <double*> [#uses=2]
%3 = getelementptr double* %2, i32 %lag ; <double*> [#uses=2]
%4 = ptrtoint double* %3 to i32 ; <i32> [#uses=1]
%5 = and i32 %4, 8 ; <i32> [#uses=1]
%6 = icmp eq i32 %5, 0 ; <i1> [#uses=1]
br i1 %6, label %bb19, label %bb
bb: ; preds = %entry
%.sum = add i32 %lag, 1 ; <i32> [#uses=1]
%7 = getelementptr double* %2, i32 %.sum ; <double*> [#uses=1]
br label %bb19
bb19: ; preds = %bb, %entry
%data15.0 = phi double* [ %7, %bb ], [ %3, %entry ] ; <double*> [#uses=5]
%8 = sitofp i32 %len to double ; <double> [#uses=1]
%9 = fsub double %8, 1.000000e+00 ; <double> [#uses=1]
%10 = fdiv double 2.000000e+00, %9 ; <double> [#uses=1]
store double %10, double* %c, align 8
%11 = ashr i32 %len, 1 ; <i32> [#uses=3]
%12 = mul i32 %11, -4 ; <i32> [#uses=2]
%13 = shl i32 %len, 1 ; <i32> [#uses=1]
%14 = and i32 %13, -4 ; <i32> [#uses=2]
call void asm sideeffect "movsd $0, %xmm7 \0A\09movapd ff_pd_1, %xmm6 \0A\09movapd ff_pd_2, %xmm5 \0A\09movlhps %xmm7, %xmm7 \0A\09subpd %xmm5, %xmm7 \0A\09addsd %xmm6, %xmm7 \0A\09", "*m,~{dirflag},~{fpsr},~{flags}"(double* %c) nounwind
%15 = and i32 %len, 1 ; <i32> [#uses=1]
%toBool = icmp eq i32 %15, 0 ; <i1> [#uses=1]
%16 = getelementptr double* %data15.0, i32 %11 ; <double*> [#uses=2]
%17 = getelementptr i32* %data, i32 %11 ; <i32*> [#uses=2]
br i1 %toBool, label %bb22, label %bb20
bb20: ; preds = %bb19
%asmtmp = call { i32, i32 } asm sideeffect "1: \0A\09movapd %xmm7, %xmm1 \0A\09mulpd %xmm1, %xmm1 \0A\09movapd %xmm6, %xmm0 \0A\09subpd %xmm1, %xmm0 \0A\09pshufd $$0x4e, %xmm0, %xmm1 \0A\09cvtpi2pd ($3,$0), %xmm2 \0A\09cvtpi2pd -1*4($3,$1), %xmm3 \0A\09mulpd %xmm0, %xmm2 \0A\09mulpd %xmm1, %xmm3 \0A\09movapd %xmm2, ($2,$0,2) \0A\09movupd %xmm3, -1*8($2,$1,2) \0A\09subpd %xmm5, %xmm7 \0A\09sub $$8, $1 \0A\09add $$8, $0 \0A\09jl 1b \0A\09", "=&r,=&r,r,r,0,1,~{dirflag},~{fpsr},~{flags}"(double* %16, i32* %17, i32 %12, i32 %14) nounwind ; <{ i32, i32 }> [#uses=0]
br label %bb28.preheader
bb22: ; preds = %bb19
%asmtmp23 = call { i32, i32 } asm sideeffect "1: \0A\09movapd %xmm7, %xmm1 \0A\09mulpd %xmm1, %xmm1 \0A\09movapd %xmm6, %xmm0 \0A\09subpd %xmm1, %xmm0 \0A\09pshufd $$0x4e, %xmm0, %xmm1 \0A\09cvtpi2pd ($3,$0), %xmm2 \0A\09cvtpi2pd -2*4($3,$1), %xmm3 \0A\09mulpd %xmm0, %xmm2 \0A\09mulpd %xmm1, %xmm3 \0A\09movapd %xmm2, ($2,$0,2) \0A\09movapd %xmm3, -2*8($2,$1,2) \0A\09subpd %xmm5, %xmm7 \0A\09sub $$8, $1 \0A\09add $$8, $0 \0A\09jl 1b \0A\09", "=&r,=&r,r,r,0,1,~{dirflag},~{fpsr},~{flags}"(double* %16, i32* %17, i32 %12, i32 %14) nounwind ; <{ i32, i32 }> [#uses=0]
br label %bb28.preheader
bb28.preheader: ; preds = %bb22, %bb20
%18 = icmp sgt i32 %lag, 0 ; <i1> [#uses=2]
br i1 %18, label %bb27, label %bb29
bb27: ; preds = %bb27, %bb28.preheader
%j4.042 = phi i32 [ 0, %bb28.preheader ], [ %indvar.next45, %bb27 ] ; <i32> [#uses=2]
%19 = sub i32 %j4.042, %lag ; <i32> [#uses=1]
%20 = getelementptr double* %data15.0, i32 %19 ; <double*> [#uses=1]
store double 0.000000e+00, double* %20, align 8
%indvar.next45 = add i32 %j4.042, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next45, %lag ; <i1> [#uses=1]
br i1 %exitcond, label %bb29, label %bb27
bb29: ; preds = %bb27, %bb28.preheader
%21 = getelementptr double* %data15.0, i32 %len ; <double*> [#uses=3]
store double 0.000000e+00, double* %21, align 8
br i1 %18, label %bb.nph, label %bb37
bb.nph: ; preds = %bb29
%22 = mul i32 %len, -8 ; <i32> [#uses=2]
%23 = add i32 %lag, -2 ; <i32> [#uses=1]
br label %bb30
bb30: ; preds = %bb35, %bb.nph
%indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb35 ] ; <i32> [#uses=2]
%j4.141 = shl i32 %indvar, 1 ; <i32> [#uses=8]
%24 = icmp eq i32 %23, %j4.141 ; <i1> [#uses=1]
%25 = or i32 %j4.141, 1 ; <i32> [#uses=2]
br i1 %24, label %bb31, label %bb33
bb31: ; preds = %bb30
%26 = add i32 %j4.141, 2 ; <i32> [#uses=2]
%.sum38 = sub i32 %len, %j4.141 ; <i32> [#uses=1]
%27 = getelementptr double* %data15.0, i32 %.sum38 ; <double*> [#uses=1]
%28 = getelementptr double* %autoc, i32 %j4.141 ; <double*> [#uses=1]
%29 = getelementptr double* %autoc, i32 %25 ; <double*> [#uses=1]
%30 = getelementptr double* %autoc, i32 %26 ; <double*> [#uses=1]
%asmtmp32 = call i32 asm sideeffect "movsd ff_pd_1, %xmm0 \0A\09movsd ff_pd_1, %xmm1 \0A\09movsd ff_pd_1, %xmm2 \0A\091: \0A\09movapd ($4,$0), %xmm3 \0A\09movupd -8($5,$0), %xmm4 \0A\09movapd ($5,$0), %xmm5 \0A\09mulpd %xmm3, %xmm4 \0A\09mulpd %xmm3, %xmm5 \0A\09mulpd -16($5,$0), %xmm3 \0A\09addpd %xmm4, %xmm1 \0A\09addpd %xmm5, %xmm0 \0A\09addpd %xmm3, %xmm2 \0A\09add $$16, $0 \0A\09jl 1b \0A\09movhlps %xmm0, %xmm3 \0A\09movhlps %xmm1, %xmm4 \0A\09movhlps %xmm2, %xmm5 \0A\09addsd %xmm3, %xmm0 \0A\09addsd %xmm4, %xmm1 \0A\09addsd %xmm5, %xmm2 \0A\09movsd %xmm0, $1 \0A\09movsd %xmm1, $2 \0A\09movsd %xmm2, $3 \0A\09", "=&r,=*m,=*m,=*m,r,r,0,~{dirflag},~{fpsr},~{flags}"(double* %28, double* %29, double* %30, double* %21, double* %27, i32 %22) nounwind ; <i32> [#uses=0]
br label %bb35
bb33: ; preds = %bb30
%.sum39 = sub i32 %len, %j4.141 ; <i32> [#uses=1]
%31 = getelementptr double* %data15.0, i32 %.sum39 ; <double*> [#uses=1]
%32 = getelementptr double* %autoc, i32 %j4.141 ; <double*> [#uses=1]
%33 = getelementptr double* %autoc, i32 %25 ; <double*> [#uses=1]
%asmtmp34 = call i32 asm sideeffect "movsd ff_pd_1, %xmm0 \0A\09movsd ff_pd_1, %xmm1 \0A\091: \0A\09movapd ($3,$0), %xmm3 \0A\09movupd -8($4,$0), %xmm4 \0A\09mulpd %xmm3, %xmm4 \0A\09mulpd ($4,$0), %xmm3 \0A\09addpd %xmm4, %xmm1 \0A\09addpd %xmm3, %xmm0 \0A\09add $$16, $0 \0A\09jl 1b \0A\09movhlps %xmm0, %xmm3 \0A\09movhlps %xmm1, %xmm4 \0A\09addsd %xmm3, %xmm0 \0A\09addsd %xmm4, %xmm1 \0A\09movsd %xmm0, $1 \0A\09movsd %xmm1, $2 \0A\09", "=&r,=*m,=*m,r,r,0,~{dirflag},~{fpsr},~{flags}"(double* %32, double* %33, double* %21, double* %31, i32 %22) nounwind ; <i32> [#uses=0]
%.pre = add i32 %j4.141, 2 ; <i32> [#uses=1]
br label %bb35
bb35: ; preds = %bb33, %bb31
%.pre-phi = phi i32 [ %.pre, %bb33 ], [ %26, %bb31 ] ; <i32> [#uses=1]
%34 = icmp slt i32 %.pre-phi, %lag ; <i1> [#uses=1]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
br i1 %34, label %bb30, label %bb37
bb37: ; preds = %bb35, %bb29
ret void
}