1 ; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s 2 ; Increment in loop bb.i28.i adjusted to 2, to prevent loop reversal from 3 ; kicking in. 4 5 declare fastcc void @rdft(i32, i32, double*, i32*, double*) 6 7 define fastcc void @mp_sqrt(i32 %n, i32 %radix, i32* %in, i32* %out, i32* %tmp1, i32* %tmp2, i32 %nfft, double* %tmp1fft, double* %tmp2fft, i32* %ip, double* %w) nounwind { 8 entry: 9 br label %bb.i5 10 11 bb.i5: ; preds = %bb.i5, %entry 12 %nfft_init.0.i = phi i32 [ 1, %entry ], [ %tmp7.i3, %bb.i5 ] ; <i32> [#uses=1] 13 %foo = phi i1 [1, %entry], [0, %bb.i5] 14 %tmp7.i3 = shl i32 %nfft_init.0.i, 1 ; <i32> [#uses=2] 15 br i1 %foo, label %bb.i5, label %mp_unexp_mp2d.exit.i 16 17 mp_unexp_mp2d.exit.i: ; preds = %bb.i5 18 br i1 %foo, label %cond_next.i, label %cond_true.i 19 20 cond_true.i: ; preds = %mp_unexp_mp2d.exit.i 21 ret void 22 23 cond_next.i: ; preds = %mp_unexp_mp2d.exit.i 24 %tmp22.i = sdiv i32 0, 2 ; <i32> [#uses=2] 25 br i1 %foo, label %cond_true29.i, label %cond_next36.i 26 27 cond_true29.i: ; preds = %cond_next.i 28 ret void 29 30 cond_next36.i: ; preds = %cond_next.i 31 store i32 %tmp22.i, i32* null, align 4 32 %tmp8.i14.i = select i1 %foo, i32 1, i32 0 ; <i32> [#uses=1] 33 br label %bb.i28.i 34 35 bb.i28.i: ; preds = %bb.i28.i, %cond_next36.i 36 ; CHECK: %bb.i28.i 37 ; CHECK: addl $2 38 ; CHECK: addl $-2 39 %j.0.reg2mem.0.i16.i = phi i32 [ 0, %cond_next36.i ], [ %indvar.next39.i, %bb.i28.i ] ; <i32> [#uses=2] 40 %din_addr.1.reg2mem.0.i17.i = phi double [ 0.000000e+00, %cond_next36.i ], [ %tmp16.i25.i, %bb.i28.i ] ; <double> [#uses=1] 41 %tmp1.i18.i = fptosi double %din_addr.1.reg2mem.0.i17.i to i32 ; <i32> [#uses=2] 42 %tmp4.i19.i = icmp slt i32 %tmp1.i18.i, %radix ; <i1> [#uses=1] 43 %x.0.i21.i = select i1 %tmp4.i19.i, i32 %tmp1.i18.i, i32 0 ; <i32> [#uses=1] 44 %tmp41.sum.i = add i32 %j.0.reg2mem.0.i16.i, 2 ; <i32> [#uses=0] 45 %tmp1213.i23.i = sitofp i32 %x.0.i21.i to double ; <double> [#uses=1] 46 %tmp15.i24.i = fsub double 0.000000e+00, %tmp1213.i23.i ; <double> [#uses=1] 47 %tmp16.i25.i = fmul double 0.000000e+00, %tmp15.i24.i ; <double> [#uses=1] 48 %indvar.next39.i = add i32 %j.0.reg2mem.0.i16.i, 2 ; <i32> [#uses=2] 49 %exitcond40.i = icmp eq i32 %indvar.next39.i, %tmp8.i14.i ; <i1> [#uses=1] 50 br i1 %exitcond40.i, label %mp_unexp_d2mp.exit29.i, label %bb.i28.i 51 52 mp_unexp_d2mp.exit29.i: ; preds = %bb.i28.i 53 %tmp46.i = sub i32 0, %tmp22.i ; <i32> [#uses=1] 54 store i32 %tmp46.i, i32* null, align 4 55 br i1 %exitcond40.i, label %bb.i.i, label %mp_sqrt_init.exit 56 57 bb.i.i: ; preds = %bb.i.i, %mp_unexp_d2mp.exit29.i 58 br label %bb.i.i 59 60 mp_sqrt_init.exit: ; preds = %mp_unexp_d2mp.exit29.i 61 tail call fastcc void @mp_mul_csqu( i32 0, double* %tmp1fft ) 62 tail call fastcc void @rdft( i32 0, i32 -1, double* null, i32* %ip, double* %w ) 63 tail call fastcc void @mp_mul_d2i( i32 0, i32 %radix, i32 0, double* %tmp1fft, i32* %tmp2 ) 64 br i1 %exitcond40.i, label %cond_false.i, label %cond_true36.i 65 66 cond_true36.i: ; preds = %mp_sqrt_init.exit 67 ret void 68 69 cond_false.i: ; preds = %mp_sqrt_init.exit 70 tail call fastcc void @mp_round( i32 0, i32 %radix, i32 0, i32* %out ) 71 tail call fastcc void @mp_add( i32 0, i32 %radix, i32* %tmp1, i32* %tmp2, i32* %tmp1 ) 72 tail call fastcc void @mp_sub( i32 0, i32 %radix, i32* %in, i32* %tmp2, i32* %tmp2 ) 73 tail call fastcc void @mp_round( i32 0, i32 %radix, i32 0, i32* %tmp1 ) 74 tail call fastcc void @mp_mul_d2i( i32 0, i32 %radix, i32 %tmp7.i3, double* %tmp2fft, i32* %tmp2 ) 75 ret void 76 } 77 78 declare fastcc void @mp_add(i32, i32, i32*, i32*, i32*) 79 80 declare fastcc void @mp_sub(i32, i32, i32*, i32*, i32*) 81 82 declare fastcc void @mp_round(i32, i32, i32, i32*) 83 84 declare fastcc void @mp_mul_csqu(i32, double*) 85 86 declare fastcc void @mp_mul_d2i(i32, i32, i32, double*, i32*) 87
