gcc/ChangeLog:
* doc/extend.texi: Add section for LoongArch BASE Built-in functions.
---
gcc/doc/extend.texi | 89 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 3adb67aa47a..417af6c368d 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -14669,6 +14669,7 @@ instructions, but allow the compiler to schedule those
calls.
* Blackfin Built-in Functions::
* BPF Built-in Functions::
* FR-V Built-in Functions::
+* LoongArch BASE Built-in Functions::
* MIPS DSP Built-in Functions::
* MIPS Paired-Single Support::
* MIPS Loongson Built-in Functions::
@@ -16197,6 +16198,94 @@ Use the @code{nldub} instruction to load the contents
of address @var{x}
into the data cache. The instruction is issued in slot I1@.
@end table
+@node LoongArch BASE Built-in Functions
+@subsection LoongArch BASE Built-in Functions
+
+These built-in functions are available for LoongArch.
+
+@itemize
+@item @code{imm0_31}, an integer literal in range 0 to 31;
+@item @code{imm0_16383}, an integer literal in range 0 to 16383;
+@item @code{imm0_32767}, an integer literal in range 0 to 32767;
+@item @code{imm_n2048_2047}, an integer literal in range -2048 to 2047;
+@item @code{i8, u8, i16, u16, i32, u32, i64, u64, __drdtime_t, __rdtime_t} are
included
+in @code{larchintrin.h} and defined as follows:
+@end itemize
+
+@smallexample
+ typedef char i8;
+ typedef unsigned char u8;
+ typedef short i16;
+ typedef unsigned short u16;
+ typedef int i32;
+ typedef unsigned int u32;
+#if __LONG_MAX__ == __LONG_LONG_MAX__
+ typedef long int i64;
+ typedef unsigned long int u64;
+#else
+ typedef long long i64;
+ typedef unsigned long long u64;
+#endif
+
+ typedef struct drdtime@{
+ unsigned long dvalue;
+ unsigned long dtimeid;
+ @} __drdtime_t;
+
+ typedef struct rdtime@{
+ unsigned int value;
+ unsigned int timeid;
+ @} __rdtime_t;
+@end smallexample
+
+The intrinsics provided are listed below; each is named after the
+machine instruction.
+
+@smallexample
+ __drdtime_t __rdtime_d (void)
+ __rdtime_t __rdtimel_w (void)
+ __rdtime_t __rdtimeh_w (void)
+ u32 __movfcsr2gr (imm0_31)
+ void __movgr2fcsr (imm0_32, u32)
+ void __cacop_d (imm0_31, u64, imm_n2048_2047)
+ u32 __cpucfg (u32)
+ void __asrtle_d (i64, i64)
+ void __asrtgt_d (i64, i64)
+ i64 __lddir_d (i64, imm0_31)
+ void __ldpte_d (i64, imm0_31)
+
+ i32 __crc_w_b_w (i8, i32)
+ i32 __crc_w_h_w (i16, i32)
+ i32 __crc_w_w_w (i32, i32)
+ i32 __crc_w_d_w (i64, i32)
+ i32 __crcc_w_b_w (i8, i32)
+ i32 __crcc_w_h_w (i16, i32)
+ i32 __crcc_w_w_w (i32, i32)
+ i32 __crcc_w_d_w (i64, i32)
+
+ u32 __csrrd_w (imm0_16383)
+ u32 __csrwr_w (u32, imm0_16383)
+ u32 __csrxchg_w (u32, u32, imm0_16383)
+ u64 __csrrd_d (imm0_16383)
+ u64 __csrwr_d (u64, imm0_16383)
+ u64 __csrxchg_d (u64, u64, imm0_16383)
+
+ u8 __iocsrrd_b (u32)
+ u16 __iocsrrd_h (u32)
+ u32 __iocsrrd_w (u32)
+ u64 __iocsrrd_d (u32)
+ void __iocsrwr_b (u8, u32)
+ void __iocsrwr_h (u16, u32)
+ void __iocsrwr_w (u32, u32)
+ void __iocsrwr_d (u64, u32)
+
+ void __dbar (imm0_32767)
+ void __ibar (imm0_32767)
+
+ void __syscall (imm0_32767)
+ void __break (imm0_32767)
+@end smallexample
+
@node MIPS DSP Built-in Functions
@subsection MIPS DSP Built-in Functions
--
2.31.1
