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| author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-02-19 09:55:45 +0000 |
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| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-02-19 09:55:45 +0000 |
| commit | 3ec022950ec233a2af418aacd1755fce4d701724 (patch) | |
| tree | 154256c5c73fda06e874fb05695e14e610ba8ad4 /driver/Driver.ml | |
| parent | 9aeba45962e8ba5cde5d81fb701a4c9a3963f4a5 (diff) | |
| download | compcert-3ec022950ec233a2af418aacd1755fce4d701724.tar.gz compcert-3ec022950ec233a2af418aacd1755fce4d701724.zip | |
Add option -Os to optimize for code size rather than for execution speed.
Refactored compilation flags that affect the Coq part (module Compopts).
Added support for C99 for loops with declarations.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2410 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'driver/Driver.ml')
| -rw-r--r-- | driver/Driver.ml | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/driver/Driver.ml b/driver/Driver.ml index 47061cda..8853794d 100644 --- a/driver/Driver.ml +++ b/driver/Driver.ml @@ -426,6 +426,8 @@ Language support options (use -fno-<opt> to turn off -f<opt>) : -fall Activate all language support options above -fnone Turn off all language support options above Code generation options: (use -fno-<opt> to turn off -f<opt>) : + -O Optimize for speed [on by default] + -Os Optimize for code size -ffpu Use FP registers for some integer operations [on] -fsmall-data <n> Set maximal size <n> for allocation in small data area -fsmall-const <n> Set maximal size <n> for allocation in small constant area @@ -525,6 +527,8 @@ let cmdline_actions = assembler_options := s :: !assembler_options); "-Wl,", Self (fun s -> push_linker_arg s); + "-Os$", Set option_Osize; + "-O$", Unset option_Osize; "-fsmall-data$", Integer(fun n -> option_small_data := n); "-fsmall-const$", Integer(fun n -> option_small_const := n); "-ffloat-const-prop$", Integer(fun n -> option_ffloatconstprop := n); |