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author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-28 10:20:41 +0000 |
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committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-28 10:20:41 +0000 |
commit | 78985618eafa646906d5523a1cda03361b5742ea (patch) | |
tree | f0290fb325ab6baaed9d46d371240b79115ac4d3 /gcc/mode-switching.c | |
parent | 10b5f23cf3f18a0c23b421f7c52f2b95a09bc20f (diff) | |
download | gcc-78985618eafa646906d5523a1cda03361b5742ea.tar.gz |
* mode-switching.c: Make small adjustments to the top comment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208892 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/mode-switching.c')
-rw-r--r-- | gcc/mode-switching.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c index 88543b2f978..316653973a4 100644 --- a/gcc/mode-switching.c +++ b/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. |