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* tree-vectorizer.c, tree.def: Fix comment typos.

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From-SVN: r93153
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Kazu Hirata 2005-01-10 19:34:36 +00:00 committed by Kazu Hirata
parent 0006c7b00d
commit 1618f9483f
3 changed files with 8 additions and 4 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2005-01-10 Kazu Hirata <kazu@cs.umass.edu>
* tree-vectorizer.c, tree.def: Fix comment typos.
2005-01-10 Mark Dettinger <dettinge@de.ibm.com> 2005-01-10 Mark Dettinger <dettinge@de.ibm.com>
* config/s390/s390.c (struct processor_costs): 4 new fields: * config/s390/s390.c (struct processor_costs): 4 new fields:

6
gcc/tree-vectorizer.c
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@ -1377,13 +1377,13 @@ vect_strip_conversion (tree expr)
a[j].b[i][j] = 0; a[j].b[i][j] = 0;
For a[j].b[i][j], EXPR will be 'i * C_i + j * C_j + C'. 'i' cannot be For a[j].b[i][j], EXPR will be 'i * C_i + j * C_j + C'. 'i' cannot be
subsituted, since its access_fn in the inner loop is i. 'j' will be substituted, since its access_fn in the inner loop is i. 'j' will be
substituted with 3. An INITIAL_OFFSET will be 'i * C_i + C`', where substituted with 3. An INITIAL_OFFSET will be 'i * C_i + C`', where
C` = 3 * C_j + C. C` = 3 * C_j + C.
Compute MISALIGN (the misalignment of the data reference initial access from Compute MISALIGN (the misalignment of the data reference initial access from
its base) if possible. Misalignment can be calculated only if all the its base) if possible. Misalignment can be calculated only if all the
variables can be substitued with constants, or if a variable is multiplied variables can be substituted with constants, or if a variable is multiplied
by a multiple of VECTYPE_ALIGNMENT. In the above example, since 'i' cannot by a multiple of VECTYPE_ALIGNMENT. In the above example, since 'i' cannot
be substituted, MISALIGN will be NULL_TREE in case that C_i is not a multiple be substituted, MISALIGN will be NULL_TREE in case that C_i is not a multiple
of VECTYPE_ALIGNMENT, and C` otherwise. (We perform MISALIGN modulo of VECTYPE_ALIGNMENT, and C` otherwise. (We perform MISALIGN modulo
@ -4894,7 +4894,7 @@ vect_get_memtag_and_dr (tree memref, tree stmt, bool is_read,
1.1.1- vect_get_base_and_offset(): 1.1.1- vect_get_base_and_offset():
Calculate base, initial_offset, step and alignment. Calculate base, initial_offset, step and alignment.
For ARRAY_REFs and COMPONENT_REFs use call get_inner_reference. For ARRAY_REFs and COMPONENT_REFs use call get_inner_reference.
2- vect_analyze_dependences(): apply dependece testing using ref_stmt.DR 2- vect_analyze_dependences(): apply dependence testing using ref_stmt.DR
3- vect_analyze_drs_alignment(): check that ref_stmt.alignment is ok. 3- vect_analyze_drs_alignment(): check that ref_stmt.alignment is ok.
4- vect_analyze_drs_access(): check that ref_stmt.step is ok. 4- vect_analyze_drs_access(): check that ref_stmt.step is ok.

2
gcc/tree.def
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@ -32,7 +32,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
These tree codes have been sorted so that the macros in tree.h that These tree codes have been sorted so that the macros in tree.h that
check for various tree codes are optimized into range checks. This check for various tree codes are optimized into range checks. This
gives a measureable performance improvement. When adding a new gives a measurable performance improvement. When adding a new
code, consider its placement in relation to the other codes. */ code, consider its placement in relation to the other codes. */
/* Any erroneous construct is parsed into a node of this type. /* Any erroneous construct is parsed into a node of this type.