4b3a878e8a
The patch sets the vectorization metadata to false for Polly's fallback loops. These are the loops executed when RTCs fail. This minimizes the multiple loop versioning carried out by Polly and subsequently by the Loop Vectorizer. --------- Co-authored-by: Michael Kruse <github@meinersbur.de>
59 lines
2.6 KiB
LLVM
59 lines
2.6 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-import-jscop,polly-codegen' -polly-import-jscop-postfix=transformed -S < %s | FileCheck %s
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;
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; The isl scheduler isolates %cond.false into two instances.
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; A partial write access in one of the instances was never executed,
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; which caused problems when querying for its index expression, which
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; is not available in that case.
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;
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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define void @partial_write_impossible_restriction(ptr %.pn) {
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entry:
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br i1 undef, label %invoke.cont258, label %cond.true.i.i.i.i1007
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cond.true.i.i.i.i1007:
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br label %invoke.cont258
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invoke.cont258:
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br label %invoke.cont274
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invoke.cont274: ; preds = %invoke.cont258
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%tmp4 = load ptr, ptr undef
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%tmp5 = load i32, ptr undef
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%tmp6 = zext i32 %tmp5 to i64
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%tmp7 = sext i32 %tmp5 to i64
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br label %for.body344
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for.body344: ; preds = %cond.end, %invoke.cont274
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%indvars.iv1602 = phi i64 [ 0, %invoke.cont274 ], [ %indvars.iv.next1603, %cond.end ]
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%indvars.iv.next1603 = add nuw nsw i64 %indvars.iv1602, 1
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%cmp347 = icmp eq i64 %indvars.iv.next1603, %tmp6
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br i1 %cmp347, label %cond.end, label %cond.false
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cond.false: ; preds = %for.body344
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%add.ptr.i1128 = getelementptr inbounds i32, ptr %tmp4, i64 %indvars.iv.next1603
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%cond.in.sroa.speculate.load.cond.false = load i32, ptr %add.ptr.i1128
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br label %cond.end
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cond.end: ; preds = %cond.false, %for.body344
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%cond.in.sroa.speculated = phi i32 [ %cond.in.sroa.speculate.load.cond.false, %cond.false ], [ undef, %for.body344 ]
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%add.ptr.i1132 = getelementptr inbounds i32, ptr %.pn, i64 %indvars.iv1602
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store i32 undef, ptr %add.ptr.i1132
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%cmp342 = icmp slt i64 %indvars.iv.next1603, %tmp7
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br i1 %cmp342, label %for.body344, label %if.then.i.i1141.loopexit
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if.then.i.i1141.loopexit: ; preds = %cond.end
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ret void
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}
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; CHECK-LABEL: polly.stmt.cond.false:
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; CHECK: %polly.access..pn{{[0-9]*}} = getelementptr i32, ptr %.pn, i64 %polly.indvar
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; CHECK: store i32 %cond.in.sroa.speculate.load.cond.false_p_scalar_, ptr %polly.access..pn{{[0-9]*}}, align 4, !alias.scope !2, !noalias !5
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; CHECK: br label %polly.merge
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; CHECK-LABEL: polly.stmt.cond.false{{[0-9]*}}:
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; CHECK: %polly.access..pn{{[0-9]*}} = getelementptr i32, ptr %.pn, i64 0
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; CHECK: store i32 %cond.in.sroa.speculate.load.cond.false_p_scalar_{{[0-9]*}}, ptr %polly.access..pn{{[0-9]*}}, align 4, !alias.scope !2, !noalias !5
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; CHECK: br label %polly.stmt.cond.end{{[0-9]*}}
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