diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/power8/strcasecmp.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power8/strcasecmp.S | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/sysdeps/powerpc/powerpc64/power8/strcasecmp.S b/sysdeps/powerpc/powerpc64/power8/strcasecmp.S index 63f6217..c83dc52 100644 --- a/sysdeps/powerpc/powerpc64/power8/strcasecmp.S +++ b/sysdeps/powerpc/powerpc64/power8/strcasecmp.S @@ -40,11 +40,20 @@ vsel v5, v7, v5, v8; \ vcmpequb. v7, v5, v4; -/* Get 16 bytes for unaligned case. */ +/* + * Get 16 bytes for unaligned case. + * reg1: Vector to hold next 16 bytes. + * reg2: Address to read from. + * reg3: Permute control vector. + * v8: Tmp vector used to mask unwanted bytes. + * v9: Tmp vector,0 when null is found on first 16 bytes + */ #ifdef __LITTLE_ENDIAN__ #define GET16BYTES(reg1, reg2, reg3) \ lvx reg1, 0, reg2; \ - vcmpequb. v8, v0, reg1; \ + vspltisb v8, -1; \ + vperm v8, v8, reg1, reg3; \ + vcmpequb. v8, v0, v8; \ beq cr6, 1f; \ vspltisb v9, 0; \ b 2f; \ @@ -57,7 +66,9 @@ #else #define GET16BYTES(reg1, reg2, reg3) \ lvx reg1, 0, reg2; \ - vcmpequb. v8, v0, reg1; \ + vspltisb v8, -1; \ + vperm v8, reg1, v8, reg3; \ + vcmpequb. v8, v0, v8; \ beq cr6, 1f; \ vspltisb v9, 0; \ b 2f; \ |