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llvm-mirror/test/Analysis/ScalarEvolution/trip-count5.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

49 lines
2.1 KiB
LLVM

; RUN: opt < %s -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
}