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usr / src / contrib / llvm-project / compiler-rt / lib / builtins / arm /

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📄 adddf3vfp.S(1008 B)
📄 addsf3.S(6.89 KB)
📄 addsf3vfp.S(989 B)
📄 aeabi_cdcmp.S(3.25 KB)
📄 aeabi_cdcmpeq_check_nan.c(570 B)
📄 aeabi_cfcmp.S(3.16 KB)
📄 aeabi_cfcmpeq_check_nan.c(568 B)
📄 aeabi_dcmp.S(1.83 KB)
📄 aeabi_div0.c(1.43 KB)
📄 aeabi_drsub.c(541 B)
📄 aeabi_fcmp.S(1.83 KB)
📄 aeabi_frsub.c(541 B)
📄 aeabi_idivmod.S(1.42 KB)
📄 aeabi_ldivmod.S(1.23 KB)
📄 aeabi_memcmp.S(883 B)
📄 aeabi_memcpy.S(883 B)
📄 aeabi_memmove.S(867 B)
📄 aeabi_memset.S(1.39 KB)
📄 aeabi_uidivmod.S(1.57 KB)
📄 aeabi_uldivmod.S(1.21 KB)
📄 bswapdi2.S(1.07 KB)
📄 bswapsi2.S(856 B)
📄 chkstk.S(1.02 KB)
📄 clzdi2.S(1.96 KB)
📄 clzsi2.S(1.67 KB)
📄 comparesf2.S(7.21 KB)
📄 divdf3vfp.S(1006 B)
📄 divmodsi4.S(2.07 KB)
📄 divsf3vfp.S(1002 B)
📄 divsi3.S(2.21 KB)
📄 eqdf2vfp.S(1023 B)
📄 eqsf2vfp.S(1.01 KB)
📄 extendsfdf2vfp.S(1.01 KB)
📄 fixdfsivfp.S(1009 B)
📄 fixsfsivfp.S(996 B)
📄 fixunsdfsivfp.S(1.05 KB)
📄 fixunssfsivfp.S(1.05 KB)
📄 floatsidfvfp.S(1016 B)
📄 floatsisfvfp.S(1014 B)
📄 floatunssidfvfp.S(1.01 KB)
📄 floatunssisfvfp.S(1.01 KB)
📄 fp_mode.c(1.56 KB)
📄 gedf2vfp.S(1.03 KB)
📄 gesf2vfp.S(1.02 KB)
📄 gtdf2vfp.S(1.01 KB)
📄 gtsf2vfp.S(1019 B)
📄 ledf2vfp.S(1.01 KB)
📄 lesf2vfp.S(1.01 KB)
📄 ltdf2vfp.S(1.01 KB)
📄 ltsf2vfp.S(1 KB)
📄 modsi3.S(1.7 KB)
📄 muldf3vfp.S(1.01 KB)
📄 mulsf3vfp.S(1005 B)
📄 nedf2vfp.S(1.02 KB)
📄 negdf2vfp.S(883 B)
📄 negsf2vfp.S(868 B)
📄 nesf2vfp.S(1.01 KB)
📄 restore_vfp_d8_d15_regs.S(1.23 KB)
📄 save_vfp_d8_d15_regs.S(1.23 KB)
📄 softfloat-alias.list(580 B)
📄 subdf3vfp.S(1.02 KB)
📄 subsf3vfp.S(1 KB)
📄 switch16.S(1.9 KB)
📄 switch32.S(1.9 KB)
📄 switch8.S(1.75 KB)
📄 switchu8.S(1.74 KB)
📄 sync-ops.h(3.7 KB)
📄 sync_fetch_and_add_4.S(696 B)
📄 sync_fetch_and_add_8.S(769 B)
📄 sync_fetch_and_and_4.S(655 B)
📄 sync_fetch_and_and_8.S(768 B)
📄 sync_fetch_and_max_4.S(665 B)
📄 sync_fetch_and_max_8.S(769 B)
📄 sync_fetch_and_min_4.S(664 B)
📄 sync_fetch_and_min_8.S(769 B)
📄 sync_fetch_and_nand_4.S(658 B)
📄 sync_fetch_and_nand_8.S(772 B)
📄 sync_fetch_and_or_4.S(652 B)
📄 sync_fetch_and_or_8.S(765 B)
📄 sync_fetch_and_sub_4.S(696 B)
📄 sync_fetch_and_sub_8.S(769 B)
📄 sync_fetch_and_umax_4.S(669 B)
📄 sync_fetch_and_umax_8.S(773 B)
📄 sync_fetch_and_umin_4.S(668 B)
📄 sync_fetch_and_umin_8.S(773 B)
📄 sync_fetch_and_xor_4.S(655 B)
📄 sync_fetch_and_xor_8.S(768 B)
📄 sync_synchronize.S(973 B)
📄 truncdfsf2vfp.S(1.02 KB)
📄 udivmodsi4.S(3.75 KB)
📄 udivsi3.S(5.8 KB)
📄 umodsi3.S(3.24 KB)
📄 unorddf2vfp.S(1.02 KB)
📄 unordsf2vfp.S(1.02 KB)

Editing: aeabi_cdcmp.S

//===-- aeabi_cdcmp.S - EABI cdcmp* implementation ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "../assembly.h"

#if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
#error big endian support not implemented
#endif

#define APSR_Z (1 << 30)
#define APSR_C (1 << 29)

// void __aeabi_cdcmpeq(double a, double b) {
//   if (isnan(a) || isnan(b)) {
//     Z = 0; C = 1;
//   } else {
//     __aeabi_cdcmple(a, b);
//   }
// }

.syntax unified
        .p2align 2
DEFINE_COMPILERRT_FUNCTION(__aeabi_cdcmpeq)
        push {r0-r3, lr}
        bl __aeabi_cdcmpeq_check_nan
        cmp r0, #1
#if defined(USE_THUMB_1)
        beq 1f
        // NaN has been ruled out, so __aeabi_cdcmple can't trap
        mov r0, sp
        ldm r0, {r0-r3}
        bl __aeabi_cdcmple
        pop {r0-r3, pc}
1:
        // Z = 0, C = 1
        movs r0, #0xF
        lsls r0, r0, #31
        pop {r0-r3, pc}
#else
        pop {r0-r3, lr}

// NaN has been ruled out, so __aeabi_cdcmple can't trap
        // Use "it ne" + unconditional branch to guarantee a supported relocation if
        // __aeabi_cdcmple is in a different section for some builds.
        IT(ne)
        bne __aeabi_cdcmple

#if defined(USE_THUMB_2)
        mov ip, #APSR_C
        msr APSR_nzcvq, ip
#else
        msr APSR_nzcvq, #APSR_C
#endif
        JMP(lr)
#endif
END_COMPILERRT_FUNCTION(__aeabi_cdcmpeq)

// void __aeabi_cdcmple(double a, double b) {
//   if (__aeabi_dcmplt(a, b)) {
//     Z = 0; C = 0;
//   } else if (__aeabi_dcmpeq(a, b)) {
//     Z = 1; C = 1;
//   } else {
//     Z = 0; C = 1;
//   }
// }

.syntax unified
        .p2align 2
DEFINE_COMPILERRT_FUNCTION(__aeabi_cdcmple)
        // Per the RTABI, this function must preserve r0-r11.
        // Save lr in the same instruction for compactness
        push {r0-r3, lr}

bl __aeabi_dcmplt
        cmp r0, #1
#if defined(USE_THUMB_1)
        bne 1f
        // Z = 0, C = 0
        movs r0, #1
        lsls r0, r0, #1
        pop {r0-r3, pc}
1:
        mov r0, sp
        ldm r0, {r0-r3}
        bl __aeabi_dcmpeq
        cmp r0, #1
        bne 2f
        // Z = 1, C = 1
        movs r0, #2
        lsls r0, r0, #31
        pop {r0-r3, pc}
2:
        // Z = 0, C = 1
        movs r0, #0xF
        lsls r0, r0, #31
        pop {r0-r3, pc}
#else
        ITT(eq)
        moveq ip, #0
        beq 1f

ldm sp, {r0-r3}
        bl __aeabi_dcmpeq
        cmp r0, #1
        ITE(eq)
        moveq ip, #(APSR_C | APSR_Z)
        movne ip, #(APSR_C)

1:
        msr APSR_nzcvq, ip
        pop {r0-r3}
        POP_PC()
#endif
END_COMPILERRT_FUNCTION(__aeabi_cdcmple)

// int __aeabi_cdrcmple(double a, double b) {
//   return __aeabi_cdcmple(b, a);
// }

.syntax unified
        .p2align 2
DEFINE_COMPILERRT_FUNCTION(__aeabi_cdrcmple)
        // Swap r0 and r2
        mov ip, r0
        mov r0, r2
        mov r2, ip

// Swap r1 and r3
        mov ip, r1
        mov r1, r3
        mov r3, ip

b __aeabi_cdcmple
END_COMPILERRT_FUNCTION(__aeabi_cdrcmple)

NO_EXEC_STACK_DIRECTIVE

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Editing: aeabi_cdcmp.S

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