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| author | Lulu Cai <cailulu@loongson.cn> | 2024-08-07 18:04:26 +0800 |
|---|---|---|
| committer | liuzhensong <liuzhensong@loongson.cn> | 2024-08-30 11:53:31 +0800 |
| commit | 4311b2c9cfa2a15fc594fe6dad9a44f948490333 (patch) | |
| tree | a1aa161cb342cbfdaa354b0b21658aa1102aa3a1 | |
| parent | 2e9df7573a1a7df1c34321c0837eb46b2be5d4a5 (diff) | |
| download | binutils-4311b2c9cfa2a15fc594fe6dad9a44f948490333.zip binutils-4311b2c9cfa2a15fc594fe6dad9a44f948490333.tar.gz binutils-4311b2c9cfa2a15fc594fe6dad9a44f948490333.tar.bz2 | |
LoongArch: LoongArch64 allows relocations to use 64-bit addends
Relocations using 64-bit addends allow larger constant offset address
calculations to be fused.
| -rw-r--r-- | gas/config/tc-loongarch.c | 3 | ||||
| -rw-r--r-- | gas/testsuite/gas/loongarch/large_addend.d | 12 | ||||
| -rw-r--r-- | gas/testsuite/gas/loongarch/large_addend.s | 8 |
3 files changed, 23 insertions, 0 deletions
diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c index 5ca33c6..2d2fc74 100644 --- a/gas/config/tc-loongarch.c +++ b/gas/config/tc-loongarch.c @@ -1221,6 +1221,9 @@ append_fixp_and_insn (struct loongarch_cl_insn *ip) bfd_get_reloc_size (howto), &reloc_info[i].value, FALSE, r_type); } + /* Allow LoongArch 64 to use 64-bit addends. */ + if (LARCH_opts.ase_lp64) + ip->fixp[i]->fx_no_overflow = 1; } } diff --git a/gas/testsuite/gas/loongarch/large_addend.d b/gas/testsuite/gas/loongarch/large_addend.d new file mode 100644 index 0000000..18eb33a --- /dev/null +++ b/gas/testsuite/gas/loongarch/large_addend.d @@ -0,0 +1,12 @@ +#as: +#objdump: -r +#skip: loongarch32-*-* + +.*: file format elf64-loongarch + +RELOCATION RECORDS FOR \[\.text\]: +OFFSET TYPE VALUE +0000000000000000 R_LARCH_PCALA_HI20 _start\+0x7fffabcd12345678 +0000000000000004 R_LARCH_PCALA_LO12 _start\+0x7fffabcd12345678 +0000000000000008 R_LARCH_PCALA64_LO20 _start\+0x7fffabcd12345678 +000000000000000c R_LARCH_PCALA64_HI12 _start\+0x7fffabcd12345678 diff --git a/gas/testsuite/gas/loongarch/large_addend.s b/gas/testsuite/gas/loongarch/large_addend.s new file mode 100644 index 0000000..7db9052 --- /dev/null +++ b/gas/testsuite/gas/loongarch/large_addend.s @@ -0,0 +1,8 @@ + .text + .global _start +_start: + pcalau12i $a0, %pc_hi20(_start+0x7fffabcd12345678) + addi.d $a1, $zero, %pc_lo12(_start+0x7fffabcd12345678) + lu32i.d $a1, %pc64_lo20(_start+0x7fffabcd12345678) + lu52i.d $a1, $a1, %pc64_hi12(_start+0x7fffabcd12345678) + add.d $a0, $a1, $a0 |