bad

        00001e18 60 06 80 52     mov        w0,#0x33
        00001e1c f5 3f 06 91     add        x21,sp,#0x18f
        00001e20 e0 23 01 79     strh       w0,[sp, #cmd]
        00001e24 e0 03 00 b2     mov        w0,#0x100000001
        00001e28 b5 e6 7a 92     and        x21,x21,#-0x40
        00001e2c f5 03 06 a9     stp        x21,w0,[sp, #data]
        00001e30 00 01 80 52     mov        w0,#0x8
        00001e34 e2 83 01 91     add        x2,sp,#0x60
        00001e38 e1 43 02 91     add        x1,sp,#0x90
        00001e3c 63 00 80 52     mov        w3,#0x3
        00001e40 e0 73 00 b9     str        w0,[sp, #blocksize]
        00001e44 e0 03 13 aa     mov        w0,x19
        00001e48 f6 ff 12 29     stp        w22,wzr,[sp, #resp_type]
        00001e4c d1 fe ff 97     bl         mmc_send_cmd_retry                               undefined mmc_send_cmd_retry()

good

        00001e50 60 06 80 52     mov        w0,#0x33
        00001e54 e0 23 01 79     strh       w0,[sp, #cmd]
        00001e58 e0 03 00 b2     mov        w0,#0x100000001
        00001e5c f5 3f 06 91     add        x21,sp,#0x18f
        00001e60 e0 37 00 f9     str        w0,[sp, #local_168]
        00001e64 00 01 80 52     mov        w0,#0x8
        00001e68 b5 e6 7a 92     and        x21,x21,#-0x40
        00001e6c e2 83 01 91     add        x2,sp,#0x60
        00001e70 e1 43 02 91     add        x1,sp,#0x90
        00001e74 63 00 80 52     mov        w3,#0x3
        00001e78 f5 33 00 f9     str        x21,[sp, #data]
        00001e7c e0 73 00 b9     str        w0,[sp, #blocksize]
        00001e80 e0 03 13 aa     mov        w0,x19
        00001e84 f6 97 00 b9     str        w22,[sp, #resp_type]
        00001e88 ff 9b 00 b9     str        wzr,[sp, #cmdarg]
        00001e8c cb fe ff 97     bl         mmc_send_cmd_retry                               undefined mmc_send_cmd_retry()

patched gcc

        00001aa0 60 06 80 52     mov        w0,#0x33
        00001aa4 f5 3f 06 91     add        x21,sp,#0x18f
        00001aa8 e0 23 01 79     strh       w0,[sp, #cmd]
        00001aac e0 03 00 b2     mov        x0,#0x100000001
        00001ab0 b5 e6 7a 92     and        x21,x21,#-0x40
        00001ab4 f5 03 06 a9     stp        x21,x0,[sp, #data]
        00001ab8 00 01 80 52     mov        w0,#0x8
        00001abc e2 83 01 91     add        x2,sp,#0x60
        00001ac0 e1 43 02 91     add        x1,sp,#0x90
        00001ac4 63 00 80 52     mov        w3,#0x3
        00001ac8 e0 73 00 b9     str        w0,[sp, #blocksize]
        00001acc e0 03 13 aa     mov        x0,x19
        00001ad0 f6 ff 12 29     stp        w22,wzr,[sp, #resp_type]
        00001ad4 50 fd ff 97     bl         mmc_send_cmd_retry                               undefined mmc_send_cmd_retry()