modify test case based on new behavious

Author: diggerlin

llvm/test/CodeGen/PowerPC/memintr32.ll

@@ -11,7 +11,7 @@ define i32 @memcmp_test(ptr nocapture noundef readonly %ptr1, ptr nocapture noun
 ; CHECK-AIX-32-P9-NEXT:    mflr r0
 ; CHECK-AIX-32-P9-NEXT:    stwu r1, -64(r1)
 ; CHECK-AIX-32-P9-NEXT:    stw r0, 72(r1)
-; CHECK-AIX-32-P9-NEXT:    bl .memcmp[PR]
+; CHECK-AIX-32-P9-NEXT:    bl .___memcmp[PR]
 ; CHECK-AIX-32-P9-NEXT:    nop
 ; CHECK-AIX-32-P9-NEXT:    addi r1, r1, 64
 ; CHECK-AIX-32-P9-NEXT:    lwz r0, 8(r1)

llvm/test/CodeGen/PowerPC/memintr64.ll

@@ -39,7 +39,7 @@ define noundef i32 @_Z11memcmp_testPKvS0_m(ptr noundef readonly captures(none) %
 ; CHECK-AIX-64-P9-NEXT:    mflr r0
 ; CHECK-AIX-64-P9-NEXT:    stdu r1, -112(r1)
 ; CHECK-AIX-64-P9-NEXT:    std r0, 128(r1)
-; CHECK-AIX-64-P9-NEXT:    bl .memcmp[PR]
+; CHECK-AIX-64-P9-NEXT:    bl .___memcmp64[PR]
 ; CHECK-AIX-64-P9-NEXT:    nop
 ; CHECK-AIX-64-P9-NEXT:    addi r1, r1, 112
 ; CHECK-AIX-64-P9-NEXT:    ld r0, 16(r1)