Index: lib/Analysis/ScopBuilder.cpp =================================================================== --- lib/Analysis/ScopBuilder.cpp +++ lib/Analysis/ScopBuilder.cpp @@ -642,7 +642,8 @@ std::vector Instructions; for (Instruction &Inst : *I->getNodeAs()) { Loop *L = LI.getLoopFor(Inst.getParent()); - if (!isa(&Inst) && !canSynthesize(&Inst, *scop, &SE, L)) + if (!isa(&Inst) && !isIgnoredIntrinsic(&Inst) && + !canSynthesize(&Inst, *scop, &SE, L)) Instructions.push_back(&Inst); } Loop *SurroundingLoop = LI.getLoopFor(I->getNodeAs()); Index: test/ScopInfo/intrinsics.ll =================================================================== --- /dev/null +++ test/ScopInfo/intrinsics.ll @@ -0,0 +1,51 @@ +; RUN: opt %loadPolly -polly-scops -analyze -polly-print-instructions < %s | FileCheck %s +; +; Verify that we remove the ignored intrinsics from the instruction list. +; +; CHECK: store i32 %i.0, i32* %arrayidx, align 4 +; +; int A[1024]; +; void func() { +; for (int i = 0; i < 1024; i++) +; A[i] = i; +; } +; +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" + +; Function Attrs: noinline nounwind uwtable +define void @func() #0 { +entry: + %A = alloca [1024 x i32], align 16 + %i = alloca i32, align 4 + store i32 0, i32* %i, align 4 + br label %for.cond + + for.cond: ; preds = %for.inc, %entry + %tmp = load i32, i32* %i, align 4 + %cmp = icmp slt i32 %tmp, 1024 + br i1 %cmp, label %for.body, label %for.end + + for.body: ; preds = %for.cond + %tmp1 = load i32, i32* %i, align 4 + %tmp2 = load i32, i32* %i, align 4 + %idxprom = sext i32 %tmp2 to i64 + %arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* %A, i64 0, i64 %idxprom + call void @llvm.donothing() + store i32 %tmp1, i32* %arrayidx, align 4 + br label %for.inc + + for.inc: ; preds = %for.body + %tmp3 = load i32, i32* %i, align 4 + %inc = add nsw i32 %tmp3, 1 + store i32 %inc, i32* %i, align 4 + br label %for.cond + + for.end: ; preds = %for.cond + ret void +} + +; Function Attrs: nounwind readnone +declare void @llvm.donothing() #1 + +attributes #0 = { noinline nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind readnone }