1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86 | grep align | count 4 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; TODO: Is it a good idea to align inner loops? It's hard to know without 4*9880d681SAndroid Build Coastguard Worker; knowing what their trip counts are, or other dynamic information. For 5*9880d681SAndroid Build Coastguard Worker; now, CodeGen aligns all loops. 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Worker@x = external global i32* ; <i32**> [#uses=1] 8*9880d681SAndroid Build Coastguard Worker 9*9880d681SAndroid Build Coastguard Workerdefine i32 @t(i32 %a, i32 %b) nounwind readonly ssp { 10*9880d681SAndroid Build Coastguard Workerentry: 11*9880d681SAndroid Build Coastguard Worker %0 = icmp eq i32 %a, 0 ; <i1> [#uses=1] 12*9880d681SAndroid Build Coastguard Worker br i1 %0, label %bb5, label %bb.nph12 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workerbb.nph12: ; preds = %entry 15*9880d681SAndroid Build Coastguard Worker %1 = icmp eq i32 %b, 0 ; <i1> [#uses=1] 16*9880d681SAndroid Build Coastguard Worker %2 = load i32*, i32** @x, align 8 ; <i32*> [#uses=1] 17*9880d681SAndroid Build Coastguard Worker br i1 %1, label %bb2.preheader, label %bb2.preheader.us 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Workerbb2.preheader.us: ; preds = %bb2.bb3_crit_edge.us, %bb.nph12 20*9880d681SAndroid Build Coastguard Worker %indvar18 = phi i32 [ 0, %bb.nph12 ], [ %indvar.next19, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=2] 21*9880d681SAndroid Build Coastguard Worker %sum.111.us = phi i32 [ 0, %bb.nph12 ], [ %4, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=0] 22*9880d681SAndroid Build Coastguard Worker %tmp16 = mul i32 %indvar18, %a ; <i32> [#uses=1] 23*9880d681SAndroid Build Coastguard Worker br label %bb1.us 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerbb1.us: ; preds = %bb1.us, %bb2.preheader.us 26*9880d681SAndroid Build Coastguard Worker %indvar = phi i32 [ 0, %bb2.preheader.us ], [ %indvar.next, %bb1.us ] ; <i32> [#uses=2] 27*9880d681SAndroid Build Coastguard Worker %tmp17 = add i32 %indvar, %tmp16 ; <i32> [#uses=1] 28*9880d681SAndroid Build Coastguard Worker %tmp. = zext i32 %tmp17 to i64 ; <i64> [#uses=1] 29*9880d681SAndroid Build Coastguard Worker %3 = getelementptr i32, i32* %2, i64 %tmp. ; <i32*> [#uses=1] 30*9880d681SAndroid Build Coastguard Worker %4 = load i32, i32* %3, align 4 ; <i32> [#uses=2] 31*9880d681SAndroid Build Coastguard Worker %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2] 32*9880d681SAndroid Build Coastguard Worker %exitcond = icmp eq i32 %indvar.next, %b ; <i1> [#uses=1] 33*9880d681SAndroid Build Coastguard Worker br i1 %exitcond, label %bb2.bb3_crit_edge.us, label %bb1.us 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Workerbb2.bb3_crit_edge.us: ; preds = %bb1.us 36*9880d681SAndroid Build Coastguard Worker %indvar.next19 = add i32 %indvar18, 1 ; <i32> [#uses=2] 37*9880d681SAndroid Build Coastguard Worker %exitcond22 = icmp eq i32 %indvar.next19, %a ; <i1> [#uses=1] 38*9880d681SAndroid Build Coastguard Worker br i1 %exitcond22, label %bb5, label %bb2.preheader.us 39*9880d681SAndroid Build Coastguard Worker 40*9880d681SAndroid Build Coastguard Workerbb2.preheader: ; preds = %bb2.preheader, %bb.nph12 41*9880d681SAndroid Build Coastguard Worker %indvar24 = phi i32 [ %indvar.next25, %bb2.preheader ], [ 0, %bb.nph12 ] ; <i32> [#uses=1] 42*9880d681SAndroid Build Coastguard Worker %indvar.next25 = add i32 %indvar24, 1 ; <i32> [#uses=2] 43*9880d681SAndroid Build Coastguard Worker %exitcond28 = icmp eq i32 %indvar.next25, %a ; <i1> [#uses=1] 44*9880d681SAndroid Build Coastguard Worker br i1 %exitcond28, label %bb5, label %bb2.preheader 45*9880d681SAndroid Build Coastguard Worker 46*9880d681SAndroid Build Coastguard Workerbb5: ; preds = %bb2.preheader, %bb2.bb3_crit_edge.us, %entry 47*9880d681SAndroid Build Coastguard Worker %sum.1.lcssa = phi i32 [ 0, %entry ], [ 0, %bb2.preheader ], [ %4, %bb2.bb3_crit_edge.us ] ; <i32> [#uses=1] 48*9880d681SAndroid Build Coastguard Worker ret i32 %sum.1.lcssa 49*9880d681SAndroid Build Coastguard Worker} 50