diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-02-19 09:55:45 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-02-19 09:55:45 +0000 |
| commit | 3ec022950ec233a2af418aacd1755fce4d701724 (patch) | |
| tree | 154256c5c73fda06e874fb05695e14e610ba8ad4 /powerpc/SelectOp.vp | |
| parent | 9aeba45962e8ba5cde5d81fb701a4c9a3963f4a5 (diff) | |
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 'powerpc/SelectOp.vp')
| -rw-r--r-- | powerpc/SelectOp.vp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/powerpc/SelectOp.vp b/powerpc/SelectOp.vp index bdb94bd..ad4f3b9 100644 --- a/powerpc/SelectOp.vp +++ b/powerpc/SelectOp.vp @@ -37,6 +37,7 @@ *) Require Import Coqlib. +Require Import Compopts. Require Import AST. Require Import Integers. Require Import Floats. @@ -190,9 +191,12 @@ Definition mulimm_base (n1: int) (e2: expr) := | i :: nil => shlimm e2 i | i :: j :: nil => - Elet e2 - (Eop Oadd (shlimm (Eletvar 0) i ::: - shlimm (Eletvar 0) j ::: Enil)) + if optim_for_size tt then + Eop (Omulimm n1) (e2:::Enil) + else + Elet e2 + (Eop Oadd (shlimm (Eletvar 0) i ::: + shlimm (Eletvar 0) j ::: Enil)) | _ => Eop (Omulimm n1) (e2:::Enil) end. |