[llvm-bugs] [Bug 34862] New: clang crashes compiling "volatile long double resld = __builtin_canonicalizel(LD)"

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Oct 6 10:22:27 PDT 2017


            Bug ID: 34862
           Summary: clang crashes compiling "volatile long double resld =
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: ahatanak at gmail.com
                CC: llvm-bugs at lists.llvm.org

clang crashes when compiling the following code:

$ cat canon-crash.c
void test_float_builtin_ops(long double LD) {
  volatile long double resld = __builtin_canonicalizel(LD);

$ clang canon-crash.c  -Os -o -  -S

fatal error: error in backend: Cannot select: t7: f80 = fcanonicalize t3
  t3: f80,ch = load<LD10[FixedStack-1](align=16)> t0, FrameIndex:i64<-1>,
    t1: i64 = FrameIndex<-1>
    t2: i64 = undef
In function: test_float_builtin_ops

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/20171006/a4e06416/attachment.html>

More information about the llvm-bugs mailing list