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-rw-r--r--tinycc/lib/atomic.S858
1 files changed, 858 insertions, 0 deletions
diff --git a/tinycc/lib/atomic.S b/tinycc/lib/atomic.S
new file mode 100644
index 0000000..29fdbee
--- /dev/null
+++ b/tinycc/lib/atomic.S
@@ -0,0 +1,858 @@
+/* ---------------------------------------------- */
+/* This file implements for arm/arm64/riscv:
+ * __atomic_compare_exchange_1
+ * __atomic_compare_exchange_2
+ * __atomic_compare_exchange_4
+ * __atomic_compare_exchange_8
+ */
+
+#ifdef __leading_underscore
+# define _(s) _##s
+#else
+# define _(s) s
+#endif
+
+#if defined __i386__
+ .text
+ .align 2
+
+ .global _(__atomic_test_and_set)
+ .type _(__atomic_test_and_set), %function
+_(__atomic_test_and_set):
+ movl 4(%esp), %edx
+ movl $1, %eax
+ xchgb (%edx), %al
+ ret
+ .size _(__atomic_test_and_set), .-_(__atomic_test_and_set)
+
+ .global _(__atomic_clear)
+ .type _(__atomic_clear), %function
+_(__atomic_clear):
+ movl 4(%esp), %edx
+ xorl %eax, %eax
+ xchgb (%edx), %al
+ ret
+ .size _(__atomic_clear), .-_(__atomic_clear)
+
+#elif defined __x86_64__
+ .text
+ .align 2
+
+ .global _(__atomic_test_and_set)
+ .type _(__atomic_test_and_set), %function
+_(__atomic_test_and_set):
+ movl $1, %eax
+ xchgb (%rdi), %al
+ ret
+ .size _(__atomic_test_and_set), .-_(__atomic_test_and_set)
+
+ .global _(__atomic_clear)
+ .type _(__atomic_clear), %function
+_(__atomic_clear):
+ xorl %eax, %eax
+ xchgb (%rdi), %al
+ ret
+ .size _(__atomic_clear), .-_(__atomic_clear)
+
+#elif defined __arm__
+
+#ifndef __TINYC__
+ .arch armv6k
+ .syntax unified
+#endif
+ .text
+ .align 2
+
+ .global _(fetch_and_add_arm)
+ .type _(fetch_and_add_arm), %function
+_(fetch_and_add_arm):
+ mcr p15, #0, r0, c7, c10, #5
+.L0:
+ ldrex r3, [r0]
+ add r3, r3, r1
+ strex r2, r3, [r0]
+ cmp r2, #0
+ bne .L0
+ mcr p15, #0, r0, c7, c10, #5
+ bx lr
+ .size _(fetch_and_add_arm), .-_(fetch_and_add_arm)
+
+ .global _(__atomic_test_and_set)
+ .type _(__atomic_test_and_set), %function
+_(__atomic_test_and_set):
+#ifdef __TINYC__
+ .int 0xe92d4030
+ .int 0xee070fba
+ .int 0xe5d03000
+ .int 0xe24dd014
+ .int 0xe1a05000
+ .int 0xe2533000
+ .int 0xe1a04001
+ .int 0x13a03001
+ .int 0xee070fba
+ .int 0xe5cd300f
+ .int 0xe3a03001
+ .int 0xe1a02003
+ .int 0xe28d100f
+ .int 0xe1a00005
+ .int 0xe58d4004
+ .int 0xe58d4000
+ .int 0xeb000009
+ .int 0xe3500000
+ .int 0x0afffff6
+ .int 0xe5dd000f
+ .int 0xe28dd014
+ .int 0xe8bd8030
+#else
+ push {r4, r5, lr}
+ mcr p15, 0, r0, c7, c10, 5
+ ldrb r3, [r0]
+ sub sp, sp, #20
+ mov r5, r0
+ subs r3, r3, #0
+ mov r4, r1
+ movne r3, #1
+ mcr p15, 0, r0, c7, c10, 5
+ strb r3, [sp, #15]
+.L20:
+ mov r3, #1
+ mov r2, r3
+ add r1, sp, #15
+ mov r0, r5
+ str r4, [sp, #4]
+ str r4, [sp]
+ bl __atomic_compare_exchange_1
+ cmp r0, #0
+ beq .L20
+ ldrb r0, [sp, #15]
+ add sp, sp, #20
+ pop {r4, r5, pc}
+#endif
+ .size _(__atomic_test_and_set), .-_(__atomic_test_and_set)
+
+ .global _(__atomic_clear)
+ .type _(__atomic_clear), %function
+_(__atomic_clear):
+#ifdef __TINYC__
+ .int 0xe3a03000
+ .int 0xee070fba
+ .int 0xe5c03000
+ .int 0xee070fba
+ .int 0xe12fff1e
+#else
+ mov r3, #0
+ mcr p15, 0, r0, c7, c10, 5
+ strb r3, [r0]
+ mcr p15, 0, r0, c7, c10, 5
+ bx lr
+#endif
+ .size _(__atomic_clear), .-_(__atomic_clear)
+
+ .global _(__atomic_compare_exchange_1)
+ .type _(__atomic_compare_exchange_1), %function
+_(__atomic_compare_exchange_1):
+#ifdef __TINYC__
+ .int 0xe52de004
+ .int 0xe5d13000
+ .int 0xf57ff05b
+ .int 0xe1d0cf9f
+ .int 0xe15c0003
+ .int 0x1a000002
+ .int 0xe1c0ef92
+ .int 0xe35e0000
+ .int 0x1afffff9
+ .int 0x03a00001
+ .int 0x13a00000
+ .int 0xf57ff05b
+ .int 0x15c1c000
+ .int 0xe49df004
+#else
+ str lr, [sp, #-4]!
+ ldrb r3, [r1]
+ mcr p15, 0, r0, c7, c10, 5
+.L1:
+ ldrexb ip, [r0]
+ cmp ip, r3
+ bne .L2
+ strexb lr, r2, [r0]
+ cmp lr, #0
+ bne .L1
+.L2:
+ mcr p15, 0, r0, c7, c10, 5
+ moveq r0, #1
+ movne r0, #0
+ strbne ip, [r1]
+ ldr pc, [sp], #4
+#endif
+ .size _(__atomic_compare_exchange_1), .-_(__atomic_compare_exchange_1)
+
+ .global _(__atomic_compare_exchange_2)
+ .type _(__atomic_compare_exchange_2), %function
+_(__atomic_compare_exchange_2):
+#ifdef __TINYC__
+ .int 0xe52de004
+ .int 0xe1d130b0
+ .int 0xf57ff05b
+ .int 0xe1f0cf9f
+ .int 0xe15c0003
+ .int 0x1a000002
+ .int 0xe1e0ef92
+ .int 0xe35e0000
+ .int 0x1afffff9
+ .int 0x03a00001
+ .int 0x13a00000
+ .int 0xf57ff05b
+ .int 0x11c1c0b0
+ .int 0xe49df004
+#else
+ str lr, [sp, #-4]!
+ ldrh r3, [r1]
+ mcr p15, 0, r0, c7, c10, 5
+.L3:
+ ldrexh ip, [r0]
+ cmp ip, r3
+ bne .L4
+ strexh lr, r2, [r0]
+ cmp lr, #0
+ bne .L3
+.L4:
+ mcr p15, 0, r0, c7, c10, 5
+ moveq r0, #1
+ movne r0, #0
+ strhne ip, [r1]
+ ldr pc, [sp], #4
+#endif
+ .size _(__atomic_compare_exchange_2), .-_(__atomic_compare_exchange_2)
+
+ .global _(__atomic_compare_exchange_4)
+ .type _(__atomic_compare_exchange_4), %function
+_(__atomic_compare_exchange_4):
+#ifdef __TINYC__
+ .int 0xe52de004
+ .int 0xe5913000
+ .int 0xf57ff05b
+ .int 0xe190cf9f
+ .int 0xe15c0003
+ .int 0x1a000002
+ .int 0xe180ef92
+ .int 0xe35e0000
+ .int 0x1afffff9
+ .int 0x03a00001
+ .int 0x13a00000
+ .int 0xf57ff05b
+ .int 0x1581c000
+ .int 0xe49df004
+#else
+ str lr, [sp, #-4]!
+ ldr r3, [r1]
+ mcr p15, 0, r0, c7, c10, 5
+.L5:
+ ldrex ip, [r0]
+ cmp ip, r3
+ bne .L6
+ strex lr, r2, [r0]
+ cmp lr, #0
+ bne .L5
+.L6:
+ mcr p15, 0, r0, c7, c10, 5
+ moveq r0, #1
+ movne r0, #0
+ strne ip, [r1]
+ ldr pc, [sp], #4
+#endif
+ .size _(__atomic_compare_exchange_4), .-_(__atomic_compare_exchange_4)
+
+/* ---------------------------------------------- */
+#elif defined __aarch64__
+
+ .text
+ .align 2
+
+ .global _(fetch_and_add_arm64)
+ .type _(fetch_and_add_arm64), %function
+_(fetch_and_add_arm64):
+#ifdef __TINYC__
+ .int 0x885f7c02
+ .int 0x0b010042
+ .int 0x8803fc02
+ .int 0x35ffffa3
+ .int 0xd5033bbf
+ .int 0xd65f03c0
+#else
+ ldxr w2, [x0]
+ add w2, w2, w1
+ stlxr w3, w2, [x0]
+ cbnz w3, _(fetch_and_add_arm64)
+ dmb ish
+ ret
+#endif
+ .size _(fetch_and_add_arm64), .-_(fetch_and_add_arm64)
+
+ .global _(__atomic_test_and_set)
+ .type _(__atomic_test_and_set), %function
+_(__atomic_test_and_set):
+#ifdef __TINYC__
+ .int 0xa9bf7bfd
+ .int 0xaa0003e1
+ .int 0x52800020
+ .int 0x910003fd
+ .int 0x2a0003f0
+ .int 0x085ffc20
+ .int 0x0811fc30
+ .int 0x35ffffd1
+ .int 0xa8c17bfd
+ .int 0xd65f03c0
+#else
+ stp x29, x30, [sp, -16]!
+ mov x1, x0
+ mov w0, 1
+ mov x29, sp
+ mov w16, w0
+.L20:
+ ldaxrb w0, [x1]
+ stlxrb w17, w16, [x1]
+ cbnz w17, .L20
+ ldp x29, x30, [sp], 16
+ ret
+#endif
+ .size _(__atomic_test_and_set), .-_(__atomic_test_and_set)
+
+ .global _(__atomic_clear)
+ .type _(__atomic_clear), %function
+_(__atomic_clear):
+#ifdef __TINYC__
+ .int 0x089ffc1f
+ .int 0xd65f03c0
+#else
+ stlrb wzr, [x0]
+ ret
+#endif
+ .size _(__atomic_clear), .-_(__atomic_clear)
+
+ .global _(__atomic_compare_exchange_1)
+ .type _(__atomic_compare_exchange_1), %function
+_(__atomic_compare_exchange_1):
+#ifdef __TINYC__
+ .int 0xa9be7bfd
+ .int 0x910003fd
+ .int 0xa90153f3
+ .int 0xaa0103f3
+ .int 0x12001c41
+ .int 0xaa0003e2
+ .int 0x39400274
+ .int 0x2a1403e0
+ .int 0x53001c10
+ .int 0x085ffc40
+ .int 0x6b10001f
+ .int 0x54000061
+ .int 0x0811fc41
+ .int 0x35ffff91
+ .int 0x6b34001f
+ .int 0x1a9f17e1
+ .int 0x54000040
+ .int 0x39000260
+ .int 0x2a0103e0
+ .int 0xa94153f3
+ .int 0xa8c27bfd
+ .int 0xd65f03c0
+#else
+ stp x29, x30, [sp, -32]!
+ mov x29, sp
+ stp x19, x20, [sp, 16]
+ mov x19, x1
+ and w1, w2, 255
+ mov x2, x0
+ ldrb w20, [x19]
+ mov w0, w20
+ uxtb w16, w0
+.L1:
+ ldaxrb w0, [x2]
+ cmp w0, w16
+ b.ne .L2
+ stlxrb w17, w1, [x2]
+ cbnz w17, .L1
+.L2:
+ cmp w0, w20, uxtb
+ cset w1, eq
+ beq .L3
+ strb w0, [x19]
+.L3:
+ mov w0, w1
+ ldp x19, x20, [sp, 16]
+ ldp x29, x30, [sp], 32
+ ret
+#endif
+ .size _(__atomic_compare_exchange_1), .-_(__atomic_compare_exchange_1)
+
+ .global _(__atomic_compare_exchange_2)
+ .type _(__atomic_compare_exchange_2), %function
+_(__atomic_compare_exchange_2):
+#ifdef __TINYC__
+ .int 0xa9be7bfd
+ .int 0x910003fd
+ .int 0xa90153f3
+ .int 0xaa0103f3
+ .int 0x12003c41
+ .int 0xaa0003e2
+ .int 0x79400274
+ .int 0x2a1403e0
+ .int 0x53003c10
+ .int 0x485ffc40
+ .int 0x6b10001f
+ .int 0x54000061
+ .int 0x4811fc41
+ .int 0x35ffff91
+ .int 0x6b34201f
+ .int 0x1a9f17e1
+ .int 0x54000040
+ .int 0x79000260
+ .int 0x2a0103e0
+ .int 0xa94153f3
+ .int 0xa8c27bfd
+ .int 0xd65f03c0
+#else
+ stp x29, x30, [sp, -32]!
+ mov x29, sp
+ stp x19, x20, [sp, 16]
+ mov x19, x1
+ and w1, w2, 65535
+ mov x2, x0
+ ldrh w20, [x19]
+ mov w0, w20
+ uxth w16, w0
+.L4:
+ ldaxrh w0, [x2]
+ cmp w0, w16
+ b.ne .L5
+ stlxrh w17, w1, [x2]
+ cbnz w17, .L4
+.L5:
+ cmp w0, w20, uxth
+ cset w1, eq
+ beq .L6
+ strh w0, [x19]
+.L6:
+ mov w0, w1
+ ldp x19, x20, [sp, 16]
+ ldp x29, x30, [sp], 32
+ ret
+#endif
+ .size _(__atomic_compare_exchange_2), .-_(__atomic_compare_exchange_2)
+
+ .global _(__atomic_compare_exchange_4)
+ .type _(__atomic_compare_exchange_4), %function
+_(__atomic_compare_exchange_4):
+#ifdef __TINYC__
+ .int 0xa9be7bfd
+ .int 0x910003fd
+ .int 0xa90153f3
+ .int 0xaa0103f3
+ .int 0x2a0203e1
+ .int 0xaa0003e2
+ .int 0xb9400274
+ .int 0x2a1403e0
+ .int 0x2a0003f0
+ .int 0x885ffc40
+ .int 0x6b10001f
+ .int 0x54000061
+ .int 0x8811fc41
+ .int 0x35ffff91
+ .int 0x6b14001f
+ .int 0x1a9f17e1
+ .int 0x54000040
+ .int 0xb9000260
+ .int 0x2a0103e0
+ .int 0xa94153f3
+ .int 0xa8c27bfd
+ .int 0xd65f03c0
+#else
+ stp x29, x30, [sp, -32]!
+ mov x29, sp
+ stp x19, x20, [sp, 16]
+ mov x19, x1
+ mov w1, w2
+ mov x2, x0
+ ldr w20, [x19]
+ mov w0, w20
+ mov w16, w0
+.L7:
+ ldaxr w0, [x2]
+ cmp w0, w16
+ b.ne .L8
+ stlxr w17, w1, [x2]
+ cbnz w17, .L7
+.L8:
+ cmp w0, w20
+ cset w1, eq
+ beq .L9
+ str w0, [x19]
+.L9:
+ mov w0, w1
+ ldp x19, x20, [sp, 16]
+ ldp x29, x30, [sp], 32
+ ret
+#endif
+ .size _(__atomic_compare_exchange_4), .-_(__atomic_compare_exchange_4)
+
+ .global _(__atomic_compare_exchange_8)
+ .type _(__atomic_compare_exchange_8), %function
+_(__atomic_compare_exchange_8):
+#ifdef __TINYC__
+ .int 0xa9be7bfd
+ .int 0x910003fd
+ .int 0xa90153f3
+ .int 0xaa0103f3
+ .int 0xaa0203e1
+ .int 0xaa0003e2
+ .int 0xf9400274
+ .int 0xaa1403e0
+ .int 0xaa0003f0
+ .int 0xc85ffc40
+ .int 0xeb10001f
+ .int 0x54000061
+ .int 0xc811fc41
+ .int 0x35ffff91
+ .int 0xeb14001f
+ .int 0x1a9f17e1
+ .int 0x54000040
+ .int 0xf9000260
+ .int 0x2a0103e0
+ .int 0xa94153f3
+ .int 0xa8c27bfd
+ .int 0xd65f03c0
+#else
+ stp x29, x30, [sp, -32]!
+ mov x29, sp
+ stp x19, x20, [sp, 16]
+ mov x19, x1
+ mov x1, x2
+ mov x2, x0
+ ldr x20, [x19]
+ mov x0, x20
+ mov x16, x0
+.L10:
+ ldaxr x0, [x2]
+ cmp x0, x16
+ b.ne .L11
+ stlxr w17, x1, [x2]
+ cbnz w17, .L10
+.L11:
+ cmp x0, x20
+ cset w1, eq
+ beq .L12
+ str x0, [x19]
+.L12:
+ mov w0, w1
+ ldp x19, x20, [sp, 16]
+ ldp x29, x30, [sp], 32
+ ret
+#endif
+ .size _(__atomic_compare_exchange_8), .-_(__atomic_compare_exchange_8)
+
+/* ---------------------------------------------- */
+#elif defined __riscv
+
+ .text
+ .align 2
+
+ .global _(fetch_and_add_riscv64)
+ .type _(fetch_and_add_riscv64), %function
+_(fetch_and_add_riscv64):
+#ifdef __TINYC__
+ .int 0x0f50000f
+ .int 0x004b5202f
+ .short 0x8082
+#else
+ fence iorw,ow
+ amoadd.w.aq zero,a1,0(a0)
+ ret
+#endif
+ .size _(fetch_and_add_riscv64), .-_(fetch_and_add_riscv64)
+
+ .global _(__atomic_test_and_set)
+ .type _(__atomic_test_and_set), %function
+_(__atomic_test_and_set):
+#ifdef __TINYC__
+ .int 0x00357793
+ .int 0x0037979b
+ .short 0x4685
+ .short 0x9971
+ .int 0x00f696bb
+ .int 0x0f50000f
+ .int 0x44d5272f
+ .int 0x00f7553b
+ .int 0x0ff57513
+ .short 0x8082
+#else
+ andi a5,a0,3
+ slliw a5,a5,3
+ li a3,1
+ andi a0,a0,-4
+ sllw a3,a3,a5
+ fence iorw,ow; amoor.w.aq a4,a3,0(a0)
+ srlw a0,a4,a5
+ andi a0,a0,0xff
+ ret
+#endif
+ .size _(__atomic_test_and_set), .-_(__atomic_test_and_set)
+
+ .global _(__atomic_clear)
+ .type _(__atomic_clear), %function
+_(__atomic_clear):
+#ifdef __TINYC__
+ .int 0x0ff0000f
+ .int 0x00050023
+ .int 0x0ff0000f
+ .short 0x8082
+#else
+ fence iorw,iorw
+ sb zero,0(a0)
+ fence iorw,iorw
+ ret
+#endif
+ .size _(__atomic_clear), .-_(__atomic_clear)
+
+ .global _(__atomic_compare_exchange_1)
+ .type _(__atomic_compare_exchange_1), %function
+_(__atomic_compare_exchange_1):
+#ifdef __TINYC__
+ .short 0x1141
+ .short 0x86ba
+ .short 0x873e
+ .short 0xe406
+ .int 0x0ff0000f
+ .int 0x0005c803
+ .int 0xff857893
+ .int 0x0008b783
+ .short 0x891d
+ .short 0x050e
+ .int 0x0ff00693
+ .int 0x00a696b3
+ .int 0x00a81833
+ .int 0x00a61633
+ .int 0xfff6c713
+ .short 0x8f7d
+ .int 0x00f6f333
+ .short 0x8f51
+ .int 0x03031263
+ .int 0x1008b32f
+ .int 0x00f31663
+ .int 0x18e8be2f
+ .int 0xfe0e1ae3
+ .int 0x40f30733
+ .short 0x879a
+ .short 0xff69
+ .int 0x0ff0000f
+ .short 0x4505
+ .short 0xa801
+ .int 0x00a7d7b3
+ .int 0x00f58023
+ .int 0x0ff0000f
+ .short 0x4501
+ .short 0x60a2
+ .short 0x0141
+ .short 0x8082
+#else
+ addi sp,sp,-16
+ mv a3,a4
+ mv a4,a5
+ sd ra,8(sp)
+ fence
+ lbu a6,0(a1)
+ andi a7,a0,-8
+ ld a5,0(a7)
+ andi a0,a0,7
+ slli a0,a0,0x3
+ li a3,255
+ sll a3,a3,a0
+ sll a6,a6,a0
+ sll a2,a2,a0
+.L1:
+ not a4,a3
+ and a4,a4,a5
+ and t1,a3,a5
+ or a4,a4,a2
+ bne t1,a6,.L4
+.L2:
+ lr.d t1,(a7)
+ bne t1,a5,.L3
+ sc.d t3,a4,(a7)
+ bnez t3,.L2
+.L3:
+ sub a4,t1,a5
+ mv a5,t1
+ bnez a4,.L1
+ fence
+ li a0,1
+ j .L5
+.L4:
+ srl a5,a5,a0
+ sb a5,0(a1)
+ fence
+ li a0,0
+.L5:
+ ld ra,8(sp)
+ addi sp,sp,16
+ jr ra
+#endif
+ .size _(__atomic_compare_exchange_1), .-_(__atomic_compare_exchange_1)
+
+ .global _(__atomic_compare_exchange_2)
+ .type _(__atomic_compare_exchange_2), %function
+_(__atomic_compare_exchange_2):
+#ifdef __TINYC__
+ .short 0x1141
+ .short 0x86ba
+ .short 0x873e
+ .short 0xe406
+ .int 0x0ff0000f
+ .int 0x0005d803
+ .int 0xff857893
+ .short 0x67c1
+ .short 0x891d
+ .int 0x0008b703
+ .short 0x050e
+ .short 0x17fd
+ .int 0x00a797b3
+ .int 0x00a81833
+ .int 0x00a61633
+ .int 0xfff7c693
+ .short 0x8ef9
+ .int 0x00e7f333
+ .short 0x8ed1
+ .int 0x03031263
+ .int 0x1008b32f
+ .int 0x00e31663
+ .int 0x18d8be2f
+ .int 0xfe0e1ae3
+ .int 0x40e306b3
+ .short 0x871a
+ .short 0xfee9
+ .int 0x0ff0000f
+ .short 0x4505
+ .short 0xa801
+ .int 0x00a75733
+ .int 0x00e59023
+ .int 0x0ff0000f
+ .short 0x4501
+ .short 0x60a2
+ .short 0x0141
+ .short 0x8082
+#else
+ addi sp,sp,-16
+ mv a3,a4
+ mv a4,a5
+ sd ra,8(sp)
+ fence
+ lhu a6,0(a1)
+ andi a7,a0,-8
+ lui a5,0x10
+ andi a0,a0,7
+ ld a4,0(a7)
+ slli a0,a0,0x3
+ addi a5,a5,-1
+ sll a5,a5,a0
+ sll a6,a6,a0
+ sll a2,a2,a0
+.L6:
+ not a3,a5
+ and a3,a3,a4
+ and t1,a5,a4
+ or a3,a3,a2
+ bne t1,a6,.L9
+.L7:
+ lr.d t1,(a7)
+ bne t1,a4,.L8
+ sc.d t3,a3,(a7)
+ bnez t3,.L7
+.L8:
+ sub a3,t1,a4
+ mv a4,t1
+ bnez a3,.L6
+ fence
+ li a0,1
+ j .L10
+.L9:
+ srl a4,a4,a0
+ sh a4,0(a1)
+ fence
+ li a0,0
+.L10:
+ ld ra,8(sp)
+ addi sp,sp,16
+ jr ra
+#endif
+ .size _(__atomic_compare_exchange_2), .-_(__atomic_compare_exchange_2)
+
+ .global _(__atomic_compare_exchange_4)
+ .type _(__atomic_compare_exchange_4), %function
+_(__atomic_compare_exchange_4):
+#ifdef __TINYC__
+ .short 0x419c
+ .int 0x0f50000f
+ .int 0x1405272f
+ .int 0x00f71663
+ .int 0x1cc5282f
+ .int 0xfe081ae3
+ .int 0x40f707bb
+ .int 0x0017b513
+ .short 0xc391
+ .short 0xc198
+ .short 0x8905
+ .short 0x8082
+#else
+ lw a5,0(a1)
+ fence iorw,ow;
+.L11:
+ lr.w.aq a4,0(a0)
+ bne a4,a5,.L12
+ sc.w.aq a6,a2,0(a0)
+ bnez a6,.L11
+.L12:
+ subw a5,a4,a5
+ seqz a0,a5
+ beq a5,zero,.L13
+ sw a4,0(a1)
+.L13:
+ andi a0,a0,1
+ ret
+#endif
+ .size _(__atomic_compare_exchange_4), .-_(__atomic_compare_exchange_4)
+
+ .global _(__atomic_compare_exchange_8)
+ .type _(__atomic_compare_exchange_8), %function
+_(__atomic_compare_exchange_8):
+#ifdef __TINYC__
+ .short 0x619c
+ .int 0x0f50000f
+ .int 0x1405372f
+ .int 0x00f71563
+ .int 0x1cc536af
+ .short 0xfaf5
+ .int 0x40f707b3
+ .int 0x0017b513
+ .short 0xc391
+ .short 0xe198
+ .short 0x8905
+ .short 0x8082
+#else
+ ld a5,0(a1)
+ fence iorw,ow;
+.L14:
+ lr.d.aq a4,0(a0)
+ bne a4,a5,.L15
+ sc.d.aq a3,a2,0(a0)
+ bnez a3,.L14
+.L15:
+ sub a5,a4,a5
+ seqz a0,a5
+ beq a5,zero,.L16
+ sd a4,0(a1)
+.L16:
+ andi a0,a0,1
+ ret
+#endif
+ .size _(__atomic_compare_exchange_8), .-_(__atomic_compare_exchange_8)
+
+/* ---------------------------------------------- */
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-16 11:54:12 +0000