[Ada] Usage of signed type in array bounds in CCG

Programming / Compilers / GCC - pmderodat [138bc75d-0d04-0410-961f-82ee72b054a4] - 22 July 2019 13:57 EDT

2019-07-22 Javier Miranda

gcc/ada/

- exp_ch4.adb (Size_In_Storage_Elements): Improve the expansion to handle array indexes that are modular type. (Expand_N_Allocator): For 32-bit targets improve the generation of the runtime check associated with large arrays supporting arrays initialized with a qualified expression.
- libgnat/s-imenne.adb (Image_Enumeration_8, Image_Enumeration_16, Image_Enumeration_32): Define the index of Index_Table with range Natural'First .. Names'Length since in the worst case all the literals of the enumeration type would be single letter literals and the Table built by the frontend would have as many components as the length of the names string. As a result of this enhancement, the internal tables declared using Index_Table have a length closer to the real needs, thus avoiding the declaration of large arrays on 32-bit CCG targets.

9bf70d945b2 [Ada] Usage of signed type in array bounds in CCG
gcc/ada/ChangeLog | 17 +++++
gcc/ada/exp_ch4.adb | 167 ++++++++++++++++++++++++++++++++++++++-----
gcc/ada/libgnat/s-imenne.adb | 9 ++-
3 files changed, 173 insertions(+), 20 deletions(-)

Upstream: gcc.gnu.org


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