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| author | Juzhe-Zhong <juzhe.zhong@rivai.ai> | 2023-10-26 11:42:20 +0800 |
|---|---|---|
| committer | Lehua Ding <lehua.ding@rivai.ai> | 2023-10-26 18:01:10 +0800 |
| commit | a4ca8691333344cecc595d1af8b21e51f588e2f2 (patch) | |
| tree | ef779414c83facaff3b7a89916ca5dad45202f70 /gcc | |
| parent | d1bb9569d7030490fe7bb35af432f934560d689d (diff) | |
| download | gcc-a4ca8691333344cecc595d1af8b21e51f588e2f2.zip gcc-a4ca8691333344cecc595d1af8b21e51f588e2f2.tar.gz gcc-a4ca8691333344cecc595d1af8b21e51f588e2f2.tar.bz2 | |
DOC: Update COND_LEN document
gcc/ChangeLog:
* doc/md.texi: Adapt COND_LEN pseudo code.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/md.texi | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index daa318e..fab2513 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -7341,8 +7341,10 @@ store the result in operand 0, otherwise store operand 2 in operand 0. The operation only works for the operands are vectors. @smallexample -for (i = 0; i < ops[4] + ops[5]; i++) - op0[i] = op1[i] ? @var{op} op2[i] : op3[i]; +for (i = 0; i < GET_MODE_NUNITS (@var{m}); i++) + op0[i] = (i < ops[4] + ops[5] && op1[i] + ? @var{op} op2[i] + : op3[i]); @end smallexample where, for example, @var{op} is @code{~} for @samp{cond_len_one_cmpl@var{mode}}. @@ -7403,8 +7405,10 @@ store the result in operand 0, otherwise store operand 4 in operand 0. The operation only works for the operands are vectors. @smallexample -for (i = 0; i < ops[5] + ops[6]; i++) - op0[i] = op1[i] ? op2[i] @var{op} op3[i] : op4[i]; +for (i = 0; i < GET_MODE_NUNITS (@var{m}); i++) + op0[i] = (i < ops[5] + ops[6] && op1[i] + ? op2[i] @var{op} op3[i] + : op4[i]); @end smallexample where, for example, @var{op} is @code{+} for @samp{cond_len_add@var{mode}}. @@ -7436,8 +7440,10 @@ takes 3 operands rather than two. For example, the vector form of @samp{cond_len_fma@var{mode}} is equivalent to: @smallexample -for (i = 0; i < ops[6] + ops[7]; i++) - op0[i] = op1[i] ? fma (op2[i], op3[i], op4[i]) : op5[i]; +for (i = 0; i < GET_MODE_NUNITS (@var{m}); i++) + op0[i] = (i < ops[6] + ops[7] && op1[i] + ? fma (op2[i], op3[i], op4[i]) + : op5[i]); @end smallexample @cindex @code{neg@var{mode}cc} instruction pattern |