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author | Yevgeny Rouban <yevgeny.y.rouban@intel.com> | 2014-08-19 18:39:57 +0700 |
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committer | Brian Carlstrom <bdc@google.com> | 2014-08-25 15:46:21 -0700 |
commit | 33ac819bd13c6e9d42b36ae8393c37cfb1bb4cde (patch) | |
tree | 9f26590eaec690f847b4f83426cf806b3d50d979 /compiler/driver/compiler_driver.h | |
parent | 7713d104f34606161fbf36497be2e2aa76d87ca9 (diff) | |
download | art-33ac819bd13c6e9d42b36ae8393c37cfb1bb4cde.zip art-33ac819bd13c6e9d42b36ae8393c37cfb1bb4cde.tar.gz art-33ac819bd13c6e9d42b36ae8393c37cfb1bb4cde.tar.bz2 |
ART fix oat debug source map operations
Several places need to be fixed in OAT debug source map generation
(see comments in https://android-review.googlesource.com/#/c/102610/19/compiler/compiled_method.h):
1. Source Maps are deduplicated in Compiler Driver by implicit conversion
SrcMapElems to bytes. This implies incorrect operator==.
2. SrcMapElem operator < is peculiar, and cannot be applied to
SrcMapElems with negative to_ fields
3. SrcMap.Arrange method is not elegant
The fix is to introduce explicit conversion from SrcMapElem to one
signed 64-bit value, which is used as a base of two new operators < and ==.
They are correct and intuitive. DedupeHashFunc is changed to
explicitly convert array elements to byte, so the explicit type conversion
from SrcMapElem to byte is used.
Minor fix: In Line Table Programs the file index set command is generated
only if the index gets new value.
Change-Id: I5e2c03404a437254fc2db3485b22bfc1799b39b7
Signed-off-by: Yevgeny Rouban <yevgeny.y.rouban@intel.com>
Diffstat (limited to 'compiler/driver/compiler_driver.h')
-rw-r--r-- | compiler/driver/compiler_driver.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/driver/compiler_driver.h b/compiler/driver/compiler_driver.h index 87523bf..624947d 100644 --- a/compiler/driver/compiler_driver.h +++ b/compiler/driver/compiler_driver.h @@ -766,7 +766,7 @@ class CompilerDriver { size_t hash = 0x811c9dc5; if (array.size() <= kSmallArrayThreshold) { for (auto b : array) { - hash = (hash * 16777619) ^ b; + hash = (hash * 16777619) ^ static_cast<uint8_t>(b); } } else { // For larger arrays use the 2 bytes at 6 bytes (the location of a push registers @@ -774,12 +774,12 @@ class CompilerDriver { // values at random. static const size_t kRandomHashCount = 16; for (size_t i = 0; i < 2; ++i) { - uint8_t b = array[i + 6]; + uint8_t b = static_cast<uint8_t>(array[i + 6]); hash = (hash * 16777619) ^ b; } for (size_t i = 2; i < kRandomHashCount; ++i) { size_t r = i * 1103515245 + 12345; - uint8_t b = array[r % array.size()]; + uint8_t b = static_cast<uint8_t>(array[r % array.size()]); hash = (hash * 16777619) ^ b; } } |