diff options
Diffstat (limited to 'ghc/includes/TailCalls.h')
| -rw-r--r-- | ghc/includes/TailCalls.h | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/ghc/includes/TailCalls.h b/ghc/includes/TailCalls.h index 53db254b66..670da9546f 100644 --- a/ghc/includes/TailCalls.h +++ b/ghc/includes/TailCalls.h @@ -249,8 +249,6 @@ but uses $$dyncall if necessary to cope, just in case you aren't. function and these markers is shredded by the mangler. -------------------------------------------------------------------------- */ -#ifndef FB_ -#if __GNUC__ < 3 /* The following __DISCARD__() has become necessary with gcc 2.96 on x86. * It prevents gcc from moving stack manipulation code from the function * body (aka the Real Code) into the function prologue, ie, from moving it @@ -260,17 +258,9 @@ but uses $$dyncall if necessary to cope, just in case you aren't. * it just doesn't choose to do it at the moment. * -= chak */ + +#ifndef FB_ #define FB_ __asm__ volatile ("--- BEGIN ---"); __DISCARD__ (); -#else -/* The __DISCARD__() doesn't appear to be necessary with gcc >= 3.2 at - * least, and it does cause some difficulty, preventing gcc from - * optimising around the beginning of the function. In particular, - * gcc leaves some stack assignments in the prologue when the call is - * present. --SDM - - */ -#define FB_ __asm__ volatile ("--- BEGIN ---"); -#endif #endif #ifndef FE_ |