Wed Oct 10 02:32:41 PDT 2007 Simon Marlow <[EMAIL PROTECTED]>
* GHCi: use non-updatable thunks for breakpoints
The extra safe points introduced for breakpoints were previously
compiled as normal updatable thunks, but they are guaranteed
single-entry, so we can use non-updatable thunks here. This restores
the tail-call property where it was lost in some cases (although stack
squeezing probably often recovered it), and should improve
performance.
M ./compiler/ghci/ByteCodeAsm.lhs +2
M ./compiler/ghci/ByteCodeGen.lhs -2 +10
M ./compiler/ghci/ByteCodeInstr.lhs -2 +5
M ./includes/Bytecodes.h -26 +27
M ./includes/StgMiscClosures.h +2
M ./rts/Apply.cmm +70
M ./rts/Interpreter.c -1 +12
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