[LLVMbugs] [Bug 3524] New: clang/x86_64 miscompiles MultiSource/Applications/sgefa/ sgefa

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Mon Feb 9 13:53:31 PST 2009


http://llvm.org/bugs/show_bug.cgi?id=3524

           Summary: clang/x86_64 miscompiles
                    MultiSource/Applications/sgefa/sgefa
           Product: clang
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: daniel at zuster.org
                CC: llvmbugs at cs.uiuc.edu


The output should be separated in places by '****....' but it is not.

The output is done at driver.c:115:
--
  if( test_case>1 ) {                   /* Free up memory used in the last
test. */
   
printf("\n\n**********************************************************************\n");
--

Possible sign extension error?

--
ddunbar at lordcrumb:sgefa$ head Output/sgefa.out-llc
Hilbert Slice.  Test case 1 of size 120.
One-Norm(A) ---------- 1.833333e+00.
Hilbert Slice.  Test case 2 of size 240.
One-Norm(A) ---------- 1.833333e+00.
Hilbert Slice.  Test case 3 of size 360.
One-Norm(A) ---------- 1.833333e+00.
Monoelemental.  Test case 4 of size 1.
MATRIX FOLLOWS
  0|  3.0000e+00

ddunbar at lordcrumb:sgefa$ head Output/sgefa.out-nat
Hilbert Slice.  Test case 1 of size 120.
One-Norm(A) ---------- 1.833333e+00.


**********************************************************************
Hilbert Slice.  Test case 2 of size 240.
One-Norm(A) ---------- 1.833333e+00.


**********************************************************************
--


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