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- ; RUN: opt < %s -indvars
- ; PR4315
- 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-f80:128:128"
- target triple = "x86_64-undermydesk-freebsd8.0"
- %struct.mbuf = type <{ %struct.mbuf*, i8*, i32, i8, i8, i8, i8 }>
- define i32 @crash(%struct.mbuf* %m) nounwind {
- entry:
- br label %for.cond
- for.cond: ; preds = %if.end, %entry
- %i.0 = phi i32 [ 0, %entry ], [ %inc, %if.end ] ; <i32> [#uses=3]
- %chksum.0 = phi i8 [ 0, %entry ], [ %conv3, %if.end ] ; <i8> [#uses=3]
- %cmp = icmp slt i32 %i.0, 1 ; <i1> [#uses=1]
- br i1 %cmp, label %for.body, label %do.body
- for.body: ; preds = %for.cond
- br i1 undef, label %if.end, label %do.body
- if.end: ; preds = %for.body
- %i.02 = trunc i32 %i.0 to i8 ; <i8> [#uses=1]
- %conv3 = add i8 %chksum.0, %i.02 ; <i8> [#uses=1]
- %inc = add i32 %i.0, 1 ; <i32> [#uses=1]
- br label %for.cond
- do.body: ; preds = %do.cond, %for.body, %for.cond
- %chksum.2 = phi i8 [ undef, %do.cond ], [ %chksum.0, %for.body ], [ %chksum.0, %for.cond ] ; <i8> [#uses=1]
- br i1 undef, label %do.cond, label %bb.nph
- bb.nph: ; preds = %do.body
- br label %while.body
- while.body: ; preds = %while.body, %bb.nph
- %chksum.13 = phi i8 [ undef, %while.body ], [ %chksum.2, %bb.nph ] ; <i8> [#uses=0]
- br i1 undef, label %do.cond, label %while.body
- do.cond: ; preds = %while.body, %do.body
- br i1 false, label %do.end, label %do.body
- do.end: ; preds = %do.cond
- ret i32 0
- }
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