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41 lines
1.5 KiB
LLVM
41 lines
1.5 KiB
LLVM
; RUN: opt < %s -analyze -scalar-evolution | grep { --> {.*,+,.*}<%bb>} | count 8
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; The addrecs in this loop are analyzable only by using nsw information.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
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define void @foo(double* %p) nounwind {
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entry:
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%tmp = load double* %p, align 8 ; <double> [#uses=1]
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%tmp1 = fcmp ogt double %tmp, 2.000000e+00 ; <i1> [#uses=1]
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br i1 %tmp1, label %bb.nph, label %return
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bb.nph: ; preds = %entry
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br label %bb
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bb: ; preds = %bb1, %bb.nph
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%i.01 = phi i32 [ %tmp8, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=3]
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%tmp2 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
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%tmp3 = getelementptr double* %p, i64 %tmp2 ; <double*> [#uses=1]
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%tmp4 = load double* %tmp3, align 8 ; <double> [#uses=1]
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%tmp5 = fmul double %tmp4, 9.200000e+00 ; <double> [#uses=1]
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%tmp6 = sext i32 %i.01 to i64 ; <i64> [#uses=1]
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%tmp7 = getelementptr double* %p, i64 %tmp6 ; <double*> [#uses=1]
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store double %tmp5, double* %tmp7, align 8
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%tmp8 = add nsw i32 %i.01, 1 ; <i32> [#uses=2]
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br label %bb1
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bb1: ; preds = %bb
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%phitmp = sext i32 %tmp8 to i64 ; <i64> [#uses=1]
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%tmp9 = getelementptr double* %p, i64 %phitmp ; <double*> [#uses=1]
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%tmp10 = load double* %tmp9, align 8 ; <double> [#uses=1]
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%tmp11 = fcmp ogt double %tmp10, 2.000000e+00 ; <i1> [#uses=1]
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br i1 %tmp11, label %bb, label %bb1.return_crit_edge
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bb1.return_crit_edge: ; preds = %bb1
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br label %return
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return: ; preds = %bb1.return_crit_edge, %entry
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ret void
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}
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