[X86] Support both eax and edx in test.

Some downstream change is currently causing us to generate code for eax
here, so support both eax and edx in the test until the cause is
determined.

Change-Id: Iad1a592b40dd34eb466d643ee1a04621a8b62369

Author: tsymalla-AMD

llvm/test/CodeGen/X86/pr38795.ll

@@ -45,7 +45,7 @@ define dso_local void @fn() {
 ; CHECK-NEXT:    movl $.str, (%esp)
 ; CHECK-NEXT:    calll printf
 ; CHECK-NEXT:    # implicit-def: $eax
-; CHECK-NEXT:    movzbl {{[-0-9]+}}(%e{{[sb]}}p), %edx # 1-byte Folded Reload
+; CHECK-NEXT:    movzbl {{[-0-9]+}}(%e{{[sb]}}p), %e{{a|d}}x # 1-byte Folded Reload
 ; CHECK-NEXT:    testl %edi, %edi
 ; CHECK-NEXT:    jne .LBB0_10
 ; CHECK-NEXT:    jmp .LBB0_6