LoongArch: Fix _dl_tlsdesc_dynamic in LSX case

HWCAP value is overwritten at the first comparison of the LASX case.
The second comparison at LSX get incorrect result.
Change to use t0 to save HWCAP value, and use t1 to save comparison
result.

diff --git a/sysdeps/loongarch/dl-tlsdesc.S b/sysdeps/loongarch/dl-tlsdesc.S
index 346b80f2ecb6f9b305ace6a7a590b1409e71adef..a6627cc7547668ce69fbc70112e8837a7c713ba1 100644 (file)
--- a/sysdeps/loongarch/dl-tlsdesc.S
+++ b/sysdeps/loongarch/dl-tlsdesc.S
@@ -81,7 +81,7 @@ _dl_tlsdesc_undefweak:
           _dl_tlsdesc_dynamic (struct tlsdesc *tdp)
           {
             struct tlsdesc_dynamic_arg *td = tdp->arg;
-            dtv_t *dtv = *(dtv_t **)((char *)__thread_pointer - TCBHEAD_DTV);
+            dtv_t *dtv = *(dtv_t **)((char *)__thread_pointer - SIZE_OF_TCB);
             if (__glibc_likely (td->gen_count <= dtv[0].counter
                && (dtv[td->tlsinfo.ti_module].pointer.val
                    != TLS_DTV_UNALLOCATED),
@@ -177,8 +177,8 @@ Hign address        dynamic_block1 <----- dtv5  */
        /* Whether support LASX.  */
        la.global   t0, _rtld_global_ro
        REG_L   t0, t0, GLRO_DL_HWCAP_OFFSET
-       andi    t0, t0, HWCAP_LOONGARCH_LASX
-       beqz    t0, .Llsx
+       andi    t1, t0, HWCAP_LOONGARCH_LASX
+       beqz    t1, .Llsx
 
        /* Save 256-bit vector registers.
           FIXME: Without vector ABI, save all vector registers.  */
@@ -219,8 +219,8 @@ Hign address        dynamic_block1 <----- dtv5  */
 
 .Llsx:
        /* Whether support LSX.  */
-       andi    t0, t0, HWCAP_LOONGARCH_LSX
-       beqz    t0, .Lfloat
+       andi    t1, t0, HWCAP_LOONGARCH_LSX
+       beqz    t1, .Lfloat
 
        /* Save 128-bit vector registers.  */
        ADDI    sp, sp, -FRAME_SIZE_LSX
@@ -296,8 +296,8 @@ Hign address        dynamic_block1 <----- dtv5  */
 
        la.global   t0, _rtld_global_ro
        REG_L   t0, t0, GLRO_DL_HWCAP_OFFSET
-       andi    t0, t0, HWCAP_LOONGARCH_LASX
-       beqz    t0, .Llsx1
+       andi    t1, t0, HWCAP_LOONGARCH_LASX
+       beqz    t1, .Llsx1
 
        /* Restore 256-bit vector registers.  */
        xvld    xr0, sp, 0*SZXREG
@@ -336,8 +336,8 @@ Hign address        dynamic_block1 <----- dtv5  */
        b .Lfcsr
 
 .Llsx1:
-       andi    t0, s0, HWCAP_LOONGARCH_LSX
-       beqz    t0, .Lfloat1
+       andi    t1, t0, HWCAP_LOONGARCH_LSX
+       beqz    t1, .Lfloat1
 
        /* Restore 128-bit vector registers.  */
        vld     vr0, sp, 0*SZVREG