forked from OSchip/llvm-project
91 lines
3.0 KiB
LLVM
91 lines
3.0 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s --check-prefix=AST
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;
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; This only works after the post-dominator tree has been fixed.
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;
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; XFAIL: *
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;
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; void exception() __attribute__((noreturn));
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;
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; void foo(long n, float A[100]) {
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; for (long i = 0; i < n; i++) {
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; if (i < 0)
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; exception();
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;
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; if (i >= 100)
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; exception();
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;
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; A[i] += i;
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; }
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; }
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; We should detect this kernel as a SCoP and derive run-time conditions such
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; that the bound-checked blocks are not part of the optimized SCoP.
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; CHECK: Invalid Context:
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; CHECK: [n] -> { : n >= 101 }
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; AST: if (1 && 0 == n >= 101)
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; AST: for (int c0 = 0; c0 < n; c0 += 1)
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; AST: Stmt_if_end_4(c0);
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;
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; AST-NOT: for
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; AST-NOT: Stmt
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;
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; AST: else
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; AST: { /* original code */ }
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: nounwind uwtable
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define void @foo(i64 %n, float* %A) #0 {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
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%cmp = icmp slt i64 %i.0, %n
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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br i1 false, label %if.then, label %if.end
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if.then: ; preds = %for.body
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call void (...) @exception() #2
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unreachable
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if.end: ; preds = %for.body
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%cmp2 = icmp sgt i64 %i.0, 99
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br i1 %cmp2, label %if.then.3, label %if.end.4
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if.then.3: ; preds = %if.end
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call void (...) @exception() #2
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unreachable
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if.end.4: ; preds = %if.end
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%conv = sitofp i64 %i.0 to float
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%arrayidx = getelementptr inbounds float, float* %A, i64 %i.0
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%tmp = load float, float* %arrayidx, align 4
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%add = fadd float %tmp, %conv
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store float %add, float* %arrayidx, align 4
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br label %for.inc
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for.inc: ; preds = %if.end.4
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%inc = add nuw nsw i64 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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; Function Attrs: noreturn
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declare void @exception(...) #1
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attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { noreturn "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { noreturn nounwind }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.8.0 (trunk 246853)"}
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