| ; PR714 |
| ; Update loop iteraton space to eliminate condition inside loop. |
| ; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep bothcond |
| define void @test(float* %x, i32 %ndat, float** %y, float %xcen, i32 %xmin, i32 %xmax, float %sigmal, float %contribution) { |
| entry: |
| %tmp5310 = icmp sgt i32 %xmin, %xmax ; <i1> [#uses=1] |
| br i1 %tmp5310, label %return, label %bb.preheader |
| |
| bb.preheader: ; preds = %entry |
| %tmp3031 = fpext float %contribution to double ; <double> [#uses=1] |
| %tmp32 = mul double %tmp3031, 5.000000e-01 ; <double> [#uses=1] |
| %tmp3839 = fpext float %sigmal to double ; <double> [#uses=1] |
| br label %bb |
| |
| bb: ; preds = %bb.preheader, %cond_next45 |
| %i.01.0 = phi i32 [ %tmp47, %cond_next45 ], [ %xmin, %bb.preheader ] ; <i32> [#uses=4] |
| %k.06.0 = phi i32 [ %tmp49, %cond_next45 ], [ 0, %bb.preheader ] ; <i32> [#uses=3] |
| %tmp2 = icmp sgt i32 %i.01.0, -1 ; <i1> [#uses=1] |
| %tmp6 = icmp slt i32 %i.01.0, %ndat ; <i1> [#uses=1] |
| %bothcond = and i1 %tmp2, %tmp6 ; <i1> [#uses=1] |
| br i1 %bothcond, label %cond_true9, label %cond_next45 |
| |
| cond_true9: ; preds = %bb |
| %tmp12 = getelementptr float* %x, i32 %i.01.0 ; <float*> [#uses=1] |
| %tmp13 = load float* %tmp12, align 4 ; <float> [#uses=1] |
| %tmp15 = sub float %xcen, %tmp13 ; <float> [#uses=1] |
| %tmp16 = tail call float @fabsf( float %tmp15 ) ; <float> [#uses=1] |
| %tmp18 = fdiv float %tmp16, %sigmal ; <float> [#uses=1] |
| %tmp21 = load float** %y, align 4 ; <float*> [#uses=2] |
| %tmp27 = getelementptr float* %tmp21, i32 %k.06.0 ; <float*> [#uses=1] |
| %tmp28 = load float* %tmp27, align 4 ; <float> [#uses=1] |
| %tmp2829 = fpext float %tmp28 to double ; <double> [#uses=1] |
| %tmp34 = sub float -0.000000e+00, %tmp18 ; <float> [#uses=1] |
| %tmp3435 = fpext float %tmp34 to double ; <double> [#uses=1] |
| %tmp36 = tail call double @exp( double %tmp3435 ) ; <double> [#uses=1] |
| %tmp37 = mul double %tmp32, %tmp36 ; <double> [#uses=1] |
| %tmp40 = fdiv double %tmp37, %tmp3839 ; <double> [#uses=1] |
| %tmp41 = add double %tmp2829, %tmp40 ; <double> [#uses=1] |
| %tmp4142 = fptrunc double %tmp41 to float ; <float> [#uses=1] |
| %tmp44 = getelementptr float* %tmp21, i32 %k.06.0 ; <float*> [#uses=1] |
| store float %tmp4142, float* %tmp44, align 4 |
| br label %cond_next45 |
| |
| cond_next45: ; preds = %bb, %cond_true9 |
| %tmp47 = add i32 %i.01.0, 1 ; <i32> [#uses=2] |
| %tmp49 = add i32 %k.06.0, 1 ; <i32> [#uses=1] |
| %tmp53 = icmp sgt i32 %tmp47, %xmax ; <i1> [#uses=1] |
| br i1 %tmp53, label %return.loopexit, label %bb |
| |
| return.loopexit: ; preds = %cond_next45 |
| br label %return |
| |
| return: ; preds = %return.loopexit, %entry |
| ret void |
| } |
| |
| declare float @fabsf(float) |
| |
| declare double @exp(double) |