4485ae0890
A check in assert-builds was meant to verify that a load provides a value in all statement instances (i.e. its domain). The domain is commonly gist'ed within the parameter context to contain fewer constraints. However, statement instances outside the context are no valid executions, hence the value provided can be undefined. Refine the check for valid loads to only needed to be defined within the SCoP context. In addition, the JSONImporter had to be changed to allow importing access relations that are broader than the current access relation, but still defined over all statement instances. This should fix the compiler crash in test-suite's oggenc of the -polly-process-unprofitable buildbot. llvm-svn: 329655
58 lines
2.6 KiB
LLVM
58 lines
2.6 KiB
LLVM
; RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-postfix=transformed -polly-codegen -S < %s | FileCheck %s
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;
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; A load must provide a value for every statement instance.
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; Statement instances not in the SCoP's context are irrelevant.
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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@ATH = external dso_local unnamed_addr constant [88 x float], align 16
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define void @load_subset_with_context() {
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entry:
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%ath = alloca [56 x float], align 16
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br label %for.body
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for.cond176.preheader: ; preds = %for.cond33.preheader
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ret void
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for.body: ; preds = %for.cond33.preheader, %entry
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%indvars.iv999 = phi i64 [ 0, %entry ], [ %indvars.iv.next1000, %for.cond33.preheader ]
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%tmp5 = shl nsw i64 %indvars.iv999, 2
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br label %for.cond7.preheader
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for.cond33.preheader: ; preds = %for.inc.3
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%tmp175 = load float, float* undef, align 4
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%indvars.iv.next1000 = add nuw nsw i64 %indvars.iv999, 1
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%exitcond1002 = icmp eq i64 %indvars.iv.next1000, 17
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br i1 %exitcond1002, label %for.cond176.preheader, label %for.body
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for.cond7.preheader: ; preds = %for.inc.3, %for.body
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%indvars.iv958 = phi i64 [ 0, %for.body ], [ %indvars.iv.next959, %for.inc.3 ]
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%tmp20 = add nuw nsw i64 %indvars.iv958, %tmp5
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%arrayidx.2 = getelementptr inbounds [88 x float], [88 x float]* @ATH, i64 0, i64 0
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%tmp157 = load float, float* %arrayidx.2, align 4
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%tmp158 = add nuw nsw i64 %tmp20, 3
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%cmp12.3 = icmp ult i64 %tmp158, 88
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br i1 %cmp12.3, label %if.then.3, label %if.else.3
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if.else.3: ; preds = %for.cond7.preheader
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br label %for.inc.3
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if.then.3: ; preds = %for.cond7.preheader
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br label %for.inc.3
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for.inc.3: ; preds = %if.then.3, %if.else.3
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%min.1.3 = phi float [ undef, %if.then.3 ], [ %tmp157, %if.else.3 ]
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%arrayidx29 = getelementptr inbounds [56 x float], [56 x float]* %ath, i64 0, i64 %indvars.iv958
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store float %min.1.3, float* %arrayidx29, align 4
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%indvars.iv.next959 = add nuw nsw i64 %indvars.iv958, 1
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%exitcond961 = icmp eq i64 %indvars.iv.next959, 56
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br i1 %exitcond961, label %for.cond33.preheader, label %for.cond7.preheader
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}
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; CHECK: polly.stmt.if.else.3:
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; CHECK-NEXT: %polly.access.cast.ath1 = bitcast [56 x float]* %ath to float*
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; CHECK-NEXT: %polly.access.ath2 = getelementptr float, float* %polly.access.cast.ath1, i64 %polly.indvar
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; CHECK-NEXT: %polly.access.ath2.reload = load float, float* %polly.access.ath2
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