From bf93e7c7d31dcda9d662afda35b4cbf8bd7375aa Mon Sep 17 00:00:00 2001 From: David Majnemer Date: Fri, 7 Nov 2014 00:31:14 +0000 Subject: LoopVectorize: Don't assume pointees are sized A pointer's pointee might not be sized: the pointee could be a function. Report this as IK_NoInduction when calculating isInductionVariable. This fixes PR21508. llvm-svn: 221501 --- .../LoopVectorize/unsized-pointee-crash.ll | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 llvm/test/Transforms/LoopVectorize/unsized-pointee-crash.ll (limited to 'llvm/test/Transforms/LoopVectorize') diff --git a/llvm/test/Transforms/LoopVectorize/unsized-pointee-crash.ll b/llvm/test/Transforms/LoopVectorize/unsized-pointee-crash.ll new file mode 100644 index 00000000000..5cc98378b95 --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/unsized-pointee-crash.ll @@ -0,0 +1,24 @@ +; RUN: opt -S -loop-vectorize < %s | FileCheck %s +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +; CHECK-LABEL: @fn1 +define void @fn1() { +entry: + br label %for.body + +for.body: + %b.05 = phi i32 (...)* [ undef, %entry ], [ %1, %for.body ] + %a.04 = phi i32 [ 0, %entry ], [ %inc, %for.body ] + %0 = bitcast i32 (...)* %b.05 to i8* + %add.ptr = getelementptr i8* %0, i64 1 + %1 = bitcast i8* %add.ptr to i32 (...)* +; CHECK: %[[cst:.*]] = bitcast i32 (...)* {{.*}} to i8* +; CHECK-NEXT: %[[gep:.*]] = getelementptr i8* %[[cst]], i64 1 + %inc = add nsw i32 %a.04, 1 + %exitcond = icmp eq i32 %a.04, 63 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + ret void +} -- cgit v1.2.3