[llvm-commits] [llvm-gcc-4.2] r47801 - /llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

[Andrew Lenharth]

right, 64 bit atomics aren't implemented on x86 yet.

On 3/3/08, Evan Cheng <evan.cheng at apple.com> wrote:
> This breaks x86-64. libgomp/critical compiles to:
>
>  define void @GOMP_critical_name_start(i8** %pptr) nounwind  {
>  entry:
>    ...
>          tail call i64 @llvm.atomic.lcs.i64( i8** %pptr, i64 0, i64
>  %tmp1314 )           ; <i64>:0 [#uses=1]
>   ...
>          ret void
>  }
>
>
>  Evan
>
>
>
>  On Mar 1, 2008, at 3:36 PM, Andrew Lenharth wrote:
>
>  > Author: alenhar2
>  > Date: Sat Mar  1 17:36:21 2008
>  > New Revision: 47801
>  >
>  > URL: http://llvm.org/viewvc/llvm-project?rev=47801&view=rev
>  > Log:
>  > turn on some atomics for a couple platforms
>  >
>  > Modified:
>  >    llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
>  >
>  > Modified: llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
>  > URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp?rev=47801&r1=47800&r2=47801&view=diff
>  >
>  > =
>  > =
>  > =
>  > =
>  > =
>  > =
>  > =
>  > =
>  > ======================================================================
>  > --- llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp (original)
>  > +++ llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp Sat Mar  1 17:36:21 2008
>  > @@ -4294,7 +4294,7 @@
>  >                        C, C + 5);
>  >     return true;
>  >   }
>  > -#if 0 //FIXME: these break the build for backends that haven't
>  > implemented them
>  > +#if defined(TARGET_386) || defined(TARGET_ALPHA)
>  >     //gcc uses many names for the sync intrinsics
>  >   case BUILT_IN_VAL_COMPARE_AND_SWAP_1:
>  >   case BUILT_IN_VAL_COMPARE_AND_SWAP_2:
>  >
>  >
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