772fcf4769
... implement support for ordering comparisons of discrete array types. This extends the Support_Composite_Compare_On_Target feature to ordering comparisons of discrete array types as specified by RM 4.5.2(26/3), when the component type is a byte (unsigned). Implement support for ordering comparisons of discrete array types with a two-pronged approach: for types with a size known at compile time, this lets the gimplifier generate the call to memcmp (or else an optimize version of it); otherwise, this directly generates the call to memcmp. gcc/ada/ * exp_ch4.adb (Expand_Array_Comparison): Remove the obsolete byte addressibility test. If Support_Composite_Compare_On_Target is true, immediately return for a component size of 8, an unsigned component type and aligned operands. Disable when Unnest_Subprogram_Mode is true (for LLVM). (Expand_N_Op_Eq): Adjust comment. * targparm.ads (Support_Composite_Compare_On_Target): Replace bit by byte in description and document support for ordering comparisons. * gcc-interface/utils2.cc (compare_arrays): Rename into... (compare_arrays_for_equality): ...this. Remove redundant lines. (compare_arrays_for_ordering): New function. (build_binary_op) <comparisons>: Call compare_arrays_for_ordering to implement ordering comparisons for arrays. |
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| .github | ||
| c++tools | ||
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| libgm2 | ||
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