[llvm-bugs] [Bug 26953] New: Reverted r263303: widen error for zero_extend_vector_inreg

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26953

            Bug ID: 26953
           Summary: Reverted r263303: widen error for
                    zero_extend_vector_inreg
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: alina.sbirlea at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 16042
  --> https://llvm.org/bugs/attachment.cgi?id=16042&action=edit
Simplified reproduction of the bug generated from Halide test

Halide on x86 was seeing failures after r263303.
Failure can be reproduced just with the change in
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp


Attaching a bitcode test generated from the following Halide test.
Error:
llc foo.bc 
WidenVectorResult #0: t39: v3i32 = zero_extend_vector_inreg t38
Do not know how to widen the result of this operator!
UNREACHABLE executed at
[...]/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp:1998!
[...]

[Original halide test follows]
[
#include "Halide.h"
#include <iostream>

using namespace Halide;

int main(int argc, char **argv) {
  ImageParam input(UInt(8), 1);
  Var x("x");
  Func f("widen");
  f(x) = cast<float>(input(x));
  f.vectorize(x, 3);

  Target target = get_target_from_environment();
  target.set_features({Target::NoBoundsQuery, Target::NoRuntime});
  //simplified test:
  f.compile_to_bitcode("foo.bc", { input }, "foo", target);
  //test and Halide runtime
  f.compile_to_bitcode("bar.bc", { input }, "bar",
parse_target_string("x86-64"));
}
]

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20160315/72ff115f/attachment-0001.html>