Add primitive floats to 'vm_compute'

* This commit add float instructions to the VM, their encoding in bytecode
  and the interpretation of primitive float values after the reduction.

* The flag '-std=c99' could be added to the C compiler flags to ensure
  that float computation strictly follows the norm (ie. i387 80-bits
  format is not used as an optimization).

  Actually, we use '-fexcess-precision=standard' instead of '-std=c99'
  because the latter would disable GNU asm used in the VM.

1 files changed, 12 insertions, 0 deletions

diff --git a/kernel/genOpcodeFiles.ml b/kernel/genOpcodeFiles.ml
index a8a4ffce9c..7deffd030b 100644
--- a/kernel/genOpcodeFiles.ml
+++ b/kernel/genOpcodeFiles.ml
@@ -137,6 +137,18 @@ let opcodes =
     "CHECKTAIL0INT63";
     "ISINT";
     "AREINT2";
+    "CHECKOPPFLOAT";
+    "CHECKABSFLOAT";
+    "CHECKCOMPAREFLOAT";
+    "CHECKADDFLOAT";
+    "CHECKSUBFLOAT";
+    "CHECKMULFLOAT";
+    "CHECKDIVFLOAT";
+    "CHECKSQRTFLOAT";
+    "CHECKFLOATOFINT63";
+    "CHECKFLOATNORMFRMANTISSA";
+    "CHECKFRSHIFTEXP";
+    "CHECKLDSHIFTEXP";
     "STOP"
   |]