diff options
Diffstat (limited to 'gcc-4.9/gcc/mode-switching.c')
| -rw-r--r-- | gcc-4.9/gcc/mode-switching.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc-4.9/gcc/mode-switching.c b/gcc-4.9/gcc/mode-switching.c index 88543b2f9..316653973 100644 --- a/gcc-4.9/gcc/mode-switching.c +++ b/gcc-4.9/gcc/mode-switching.c @@ -45,20 +45,20 @@ along with GCC; see the file COPYING3. If not see and finding all the insns which require a specific mode. Each insn gets a unique struct seginfo element. These structures are inserted into a list for each basic block. For each entity, there is an array of bb_info over - the flow graph basic blocks (local var 'bb_info'), and contains a list + the flow graph basic blocks (local var 'bb_info'), which contains a list of all insns within that basic block, in the order they are encountered. For each entity, any basic block WITHOUT any insns requiring a specific - mode are given a single entry, without a mode. (Each basic block - in the flow graph must have at least one entry in the segment table.) + mode are given a single entry without a mode (each basic block in the + flow graph must have at least one entry in the segment table). The LCM algorithm is then run over the flow graph to determine where to - place the sets to the highest-priority value in respect of first the first + place the sets to the highest-priority mode with respect to the first insn in any one block. Any adjustments required to the transparency vectors are made, then the next iteration starts for the next-lower priority mode, till for each entity all modes are exhausted. - More details are located in the code for optimize_mode_switching(). */ + More details can be found in the code of optimize_mode_switching. */ /* This structure contains the information for each insn which requires either single or double mode to be set. |