[PowerPC] Replace cntlz[.] with cntlzw[.]
cntlz is the old POWER mnemonic. cntlzw is the PowerPC mnemonic.
This change fixes an issue when -no-integrated-as: The opcode cntlz is
unrecognized by gas
Alias the POWER mnemonic cntlz[.] to the PowerPC mnemonic cntlzw[.]
This is done for because the POWER cntlz mnemonic has be used by LLVM for
a very long time. We need to make sure that assembly programs
that are using the cntlz[.] do not break with this change.
Change PowerPC tests to reflect the insn change from cntlz to cntlzw.
Add assembly test to verify cntlz[.] is encoded correctly.
Patch by Tom Rix!
llvm-svn: 251489
diff --git a/llvm/test/CodeGen/PowerPC/cttz.ll b/llvm/test/CodeGen/PowerPC/cttz.ll
index 60de982..3757fa3 100644
--- a/llvm/test/CodeGen/PowerPC/cttz.ll
+++ b/llvm/test/CodeGen/PowerPC/cttz.ll
@@ -6,7 +6,7 @@
define i32 @bar(i32 %x) {
entry:
; CHECK: @bar
-; CHECK: cntlz
+; CHECK: cntlzw
%tmp.1 = call i32 @llvm.cttz.i32( i32 %x, i1 true ) ; <i32> [#uses=1]
ret i32 %tmp.1
}
