[llvm-bugs] [Bug 26906] New: -mcmodel=large, Cannot select: t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26906

            Bug ID: 26906
           Summary: -mcmodel=large, Cannot select: t10: i64 =
                    X86ISD::WrapperRIP TargetGlobalTLSAddress:i64
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: eugeni.stepanov at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

With -mcmodel=large, the following code can not be compiled:

$ cat 1.c
extern __thread int x;
int f(void) { return x; }

$ ./bin/clang 1.c -mcmodel=large -c
fatal error: error in backend: Cannot select: t10: i64 = X86ISD::WrapperRIP
TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]
  t9: i64 = TargetGlobalTLSAddress<i32* @x> 0 [TF=10]
In function: f
clang-3.9: error: clang frontend command failed with exit code 70 (use -v to
see invocation)

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