| Sanjay Patel | b653de1 | 2014-09-10 17:58:16 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s |
| Nadav Rotem | 4cb8cda | 2012-10-31 21:40:39 +0000 | [diff] [blame] | 2 | |
| 3 | target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-apple-macosx10.8.0" |
| 5 | |
| Stephen Lin | c1c7a13 | 2013-07-14 01:42:54 +0000 | [diff] [blame] | 6 | ;CHECK-LABEL: @flags1( |
| Nadav Rotem | 4cb8cda | 2012-10-31 21:40:39 +0000 | [diff] [blame] | 7 | ;CHECK: load <4 x i32> |
| 8 | ;CHECK: mul nsw <4 x i32> |
| 9 | ;CHECK: store <4 x i32> |
| 10 | ;CHECK: ret i32 |
| 11 | define i32 @flags1(i32 %n, i32* nocapture %A) nounwind uwtable ssp { |
| 12 | %1 = icmp sgt i32 %n, 9 |
| 13 | br i1 %1, label %.lr.ph, label %._crit_edge |
| 14 | |
| 15 | .lr.ph: ; preds = %0, %.lr.ph |
| 16 | %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 9, %0 ] |
| 17 | %2 = getelementptr inbounds i32* %A, i64 %indvars.iv |
| 18 | %3 = load i32* %2, align 4 |
| 19 | %4 = mul nsw i32 %3, 3 |
| 20 | store i32 %4, i32* %2, align 4 |
| 21 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 22 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 23 | %exitcond = icmp eq i32 %lftr.wideiv, %n |
| 24 | br i1 %exitcond, label %._crit_edge, label %.lr.ph |
| 25 | |
| 26 | ._crit_edge: ; preds = %.lr.ph, %0 |
| 27 | ret i32 undef |
| 28 | } |
| 29 | |
| 30 | |
| Stephen Lin | c1c7a13 | 2013-07-14 01:42:54 +0000 | [diff] [blame] | 31 | ;CHECK-LABEL: @flags2( |
| Nadav Rotem | 4cb8cda | 2012-10-31 21:40:39 +0000 | [diff] [blame] | 32 | ;CHECK: load <4 x i32> |
| 33 | ;CHECK: mul <4 x i32> |
| 34 | ;CHECK: store <4 x i32> |
| 35 | ;CHECK: ret i32 |
| 36 | define i32 @flags2(i32 %n, i32* nocapture %A) nounwind uwtable ssp { |
| 37 | %1 = icmp sgt i32 %n, 9 |
| 38 | br i1 %1, label %.lr.ph, label %._crit_edge |
| 39 | |
| 40 | .lr.ph: ; preds = %0, %.lr.ph |
| 41 | %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 9, %0 ] |
| 42 | %2 = getelementptr inbounds i32* %A, i64 %indvars.iv |
| 43 | %3 = load i32* %2, align 4 |
| 44 | %4 = mul i32 %3, 3 |
| 45 | store i32 %4, i32* %2, align 4 |
| 46 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 47 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 48 | %exitcond = icmp eq i32 %lftr.wideiv, %n |
| 49 | br i1 %exitcond, label %._crit_edge, label %.lr.ph |
| 50 | |
| 51 | ._crit_edge: ; preds = %.lr.ph, %0 |
| 52 | ret i32 undef |
| 53 | } |
| Arnold Schwaighofer | ab12363 | 2014-03-05 21:10:47 +0000 | [diff] [blame] | 54 | |
| 55 | ; Make sure we copy fast math flags and use them for the final reduction. |
| 56 | ; CHECK-LABEL: fast_math |
| 57 | ; CHECK: load <4 x float> |
| 58 | ; CHECK: fadd fast <4 x float> |
| 59 | ; CHECK: br |
| 60 | ; CHECK: fadd fast <4 x float> |
| 61 | ; CHECK: fadd fast <4 x float> |
| 62 | define float @fast_math(float* noalias %s) { |
| 63 | entry: |
| 64 | br label %for.body |
| 65 | |
| 66 | for.body: |
| 67 | %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| 68 | %q.04 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ] |
| 69 | %arrayidx = getelementptr inbounds float* %s, i64 %indvars.iv |
| 70 | %0 = load float* %arrayidx, align 4 |
| 71 | %add = fadd fast float %q.04, %0 |
| 72 | %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| 73 | %exitcond = icmp eq i64 %indvars.iv.next, 256 |
| 74 | br i1 %exitcond, label %for.end, label %for.body |
| 75 | |
| 76 | for.end: |
| 77 | %add.lcssa = phi float [ %add, %for.body ] |
| 78 | ret float %add.lcssa |
| 79 | } |