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* AArch64 / macOS: use __DATA,__CONST section instead of .const (temporary fix)Xavier Leroy2020-12-261-1/+1
| | | | | | | | The .const section cannot contain absolute references to symbols, as these may need relocation and therefore must be writable. This should be fixed more generally by distinguishing between initialization data that contains absolute references to symbols and initialization data that does not.
* AArch64: macOS portXavier Leroy2020-12-261-109/+223
| | | | | This commit adds support for macOS (and probably iOS) running on AArch64 / ARM 64-bit / "Apple silicon" processors.
* AArch64: clarify the printing of extending-register arithmetic operationsXavier Leroy2020-12-261-13/+13
| | | | | The extended register is now printed as an X register if the extension mode is UXTX, and as a W register otherwise.
* AArch64: wrong function alignmentXavier Leroy2020-12-261-1/+1
| | | | | The alignment was 2 bytes (like for ARM) but should be 4 bytes. It was ignored by the GNU assembler, but the LLVM assembler warns.
* Added implementation for fmin/fmax for aarch64.Bernhard Schommer2020-11-061-0/+4
| | | | | The two built-in function map to the fmax and fmin instruction. Bug 30035
* AArch64 implementation of __builtin_ctz*Xavier Leroy2020-07-271-0/+2
| | | | Using the "rbit" instruction (reverse bits).
* Revert "Remove `__builtin_nop` for some architectures. (#208)"Bernhard Schommer2020-01-031-0/+3
| | | | This reverts commit 4dfcd7d4be18e8bc437ca170782212aa06635a95.
* Remove `__builtin_nop` for some architectures. (#208)Bernhard Schommer2019-12-211-3/+0
| | | | | | | The `__builtin_nop` function is documented only for PowerPC. It was added to the other architectures by copy paste, but has no known uses. So, remove `__builtin_nop` from all architectures but PowerPC.
* AArch64 portXavier Leroy2019-08-081-0/+592
This commit adds a back-end for the AArch64 architecture, namely ARMv8 in 64-bit mode.