diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/Analysis/ScalarEvolution/trip-count5.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/trip-count5.ll b/test/Analysis/ScalarEvolution/trip-count5.ll new file mode 100644 index 0000000..822dc26 --- /dev/null +++ b/test/Analysis/ScalarEvolution/trip-count5.ll @@ -0,0 +1,48 @@ +; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output > %t +; RUN: grep sext %t | count 2 +; RUN: not grep {(sext} %t + +; ScalarEvolution should be able to compute a maximum trip count +; value sufficient to fold away both sext casts. + +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" + +define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind { +entry: + %tmp3 = load float* %peakWeight, align 4 ; <float> [#uses=2] + %tmp2538 = icmp sgt i32 %bim, 0 ; <i1> [#uses=1] + br i1 %tmp2538, label %bb.nph, label %bb4 + +bb.nph: ; preds = %entry + br label %bb + +bb: ; preds = %bb1, %bb.nph + %distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] ; <float> [#uses=1] + %hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2] + %peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] ; <float> [#uses=1] + %tmp6 = sext i32 %hiPart.035 to i64 ; <i64> [#uses=1] + %tmp7 = getelementptr float* %pTmp1, i64 %tmp6 ; <float*> [#uses=1] + %tmp8 = load float* %tmp7, align 4 ; <float> [#uses=1] + %tmp10 = fadd float %tmp8, %distERBhi.036 ; <float> [#uses=3] + %tmp12 = add i32 %hiPart.035, 1 ; <i32> [#uses=3] + %tmp15 = sext i32 %tmp12 to i64 ; <i64> [#uses=1] + %tmp16 = getelementptr float* %peakWeight, i64 %tmp15 ; <float*> [#uses=1] + %tmp17 = load float* %tmp16, align 4 ; <float> [#uses=1] + %tmp19 = fadd float %tmp17, %peakCount.034 ; <float> [#uses=2] + br label %bb1 + +bb1: ; preds = %bb + %tmp21 = fcmp olt float %tmp10, 2.500000e+00 ; <i1> [#uses=1] + %tmp25 = icmp slt i32 %tmp12, %bim ; <i1> [#uses=1] + %tmp27 = and i1 %tmp21, %tmp25 ; <i1> [#uses=1] + br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge + +bb1.bb4_crit_edge: ; preds = %bb1 + br label %bb4 + +bb4: ; preds = %bb1.bb4_crit_edge, %entry + %distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] ; <float> [#uses=1] + %peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] ; <float> [#uses=1] + %tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa ; <float> [#uses=1] + ret float %tmp31 +} |