Home | History | Annotate | Download | only in X86
      1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
      2 ; rdar://7395200
      3 
      4 @g = common global [4 x float] zeroinitializer, align 16 ; <[4 x float]*> [#uses=4]
      5 
      6 define void @foo(i32 %n, float* nocapture %x) nounwind ssp {
      7 entry:
      8 ; CHECK: foo:
      9   %0 = icmp sgt i32 %n, 0                         ; <i1> [#uses=1]
     10   br i1 %0, label %bb.nph, label %return
     11 
     12 bb.nph:                                           ; preds = %entry
     13 ; CHECK: movq _g@GOTPCREL(%rip), [[REG:%[a-z]+]]
     14   %tmp = zext i32 %n to i64                       ; <i64> [#uses=1]
     15   br label %bb
     16 
     17 bb:                                               ; preds = %bb, %bb.nph
     18 ; CHECK: LBB0_2:
     19   %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %bb ] ; <i64> [#uses=2]
     20   %tmp9 = shl i64 %indvar, 2                      ; <i64> [#uses=4]
     21   %tmp1016 = or i64 %tmp9, 1                      ; <i64> [#uses=1]
     22   %scevgep = getelementptr float* %x, i64 %tmp1016 ; <float*> [#uses=1]
     23   %tmp1117 = or i64 %tmp9, 2                      ; <i64> [#uses=1]
     24   %scevgep12 = getelementptr float* %x, i64 %tmp1117 ; <float*> [#uses=1]
     25   %tmp1318 = or i64 %tmp9, 3                      ; <i64> [#uses=1]
     26   %scevgep14 = getelementptr float* %x, i64 %tmp1318 ; <float*> [#uses=1]
     27   %x_addr.03 = getelementptr float* %x, i64 %tmp9 ; <float*> [#uses=1]
     28   %1 = load float* getelementptr inbounds ([4 x float]* @g, i64 0, i64 0), align 16 ; <float> [#uses=1]
     29   store float %1, float* %x_addr.03, align 4
     30   %2 = load float* getelementptr inbounds ([4 x float]* @g, i64 0, i64 1), align 4 ; <float> [#uses=1]
     31   store float %2, float* %scevgep, align 4
     32   %3 = load float* getelementptr inbounds ([4 x float]* @g, i64 0, i64 2), align 8 ; <float> [#uses=1]
     33   store float %3, float* %scevgep12, align 4
     34   %4 = load float* getelementptr inbounds ([4 x float]* @g, i64 0, i64 3), align 4 ; <float> [#uses=1]
     35   store float %4, float* %scevgep14, align 4
     36   %indvar.next = add i64 %indvar, 1               ; <i64> [#uses=2]
     37   %exitcond = icmp eq i64 %indvar.next, %tmp      ; <i1> [#uses=1]
     38   br i1 %exitcond, label %return, label %bb
     39 
     40 return:                                           ; preds = %bb, %entry
     41   ret void
     42 }
     43