diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-05-17 11:37:39 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-05-17 11:37:39 +0000 |
| commit | a3f1744823d6dbeaf400812de86263fb615bbbba (patch) | |
| tree | ff1ed0a68fe2dceb19bb768cec89912344ea1ef6 /backend/Tailcall.v | |
| parent | 61f6aed04b846b174126d4b1cec28f6f1da20e52 (diff) | |
Add option -fno-tailcalls to turn off tailcall elimination (causes problem with some static analysis tools).
*/PrintAsm.ml: don't cfa_adjust at Pfreeframe, as more code from the function can appear after (in case of tailcalls).
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2256 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/Tailcall.v')
| -rw-r--r-- | backend/Tailcall.v | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/backend/Tailcall.v b/backend/Tailcall.v index 917ec83..26beb34 100644 --- a/backend/Tailcall.v +++ b/backend/Tailcall.v @@ -95,10 +95,13 @@ Definition transf_instr (f: function) (pc: node) (instr: instruction) := end. (** A function is transformed only if its stack block is empty, - as explained above. *) + as explained above. Moreover, we can turn tail calls off + using a compilation option. *) + +Parameter eliminate_tailcalls: unit -> bool. Definition transf_function (f: function) : function := - if zeq f.(fn_stacksize) 0 + if zeq f.(fn_stacksize) 0 && eliminate_tailcalls tt then RTL.transf_function (transf_instr f) f else f. |