[LLVMbugs] [Bug 11426] New: Assertion `V->getType()->isPointerTy() && "Capture is for pointers only!"' failed.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11426

             Bug #: 11426
           Summary: Assertion `V->getType()->isPointerTy() && "Capture is
                    for pointers only!"' failed.
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


$ opt -dse non-ptr-malloc.ll -disable-output
opt: llvm/lib/Analysis/CaptureTracking.cpp:76: void
llvm::PointerMayBeCaptured(const llvm::Value*, llvm::CaptureTracker*):
Assertion `V->getType()->isPointerTy() && "Capture is for pointers only!"'
failed.
...

Here is the testcase.  Probably someone is assuming that a function called
"malloc" has to return a pointer.

target datalayout =
"e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"

define i64 @unc_memops__alloc(i64 %size) uwtable {
entry:
  %0 = tail call i64 @malloc(i64 %size)
  unreachable
}

declare i64 @malloc(i64)

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