[PATCH] Add support for scalarizing ctlz_zero_undef

[Petar Jovanovic]

Hi chandlerc,

Fix the missing case in ScalarizeVectorResult() that was exposed with
libclcore.bc in Android.

http://reviews.llvm.org/D4645

Files:
  lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
  test/CodeGen/Mips/ctlz-v.ll

Index: lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
===================================================================
--- lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -69,6 +69,7 @@
   case ISD::ANY_EXTEND:
   case ISD::BSWAP:
   case ISD::CTLZ:
+  case ISD::CTLZ_ZERO_UNDEF:
   case ISD::CTPOP:
   case ISD::CTTZ:
   case ISD::FABS:
Index: test/CodeGen/Mips/ctlz-v.ll
===================================================================
--- /dev/null
+++ test/CodeGen/Mips/ctlz-v.ll
@@ -0,0 +1,19 @@
+; RUN: llc  < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=MIPS32
+; RUN: llc  < %s -march=mips64el -mcpu=mips64r2 | FileCheck %s -check-prefix=MIPS64
+
+declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1)
+
+define <2 x i32> @ctlzv2i32(<2 x i32> %x) {
+entry:
+; MIPS32: clz     $2, $4
+; MIPS32: jr      $ra
+; MIPS32: clz     $3, $5
+
+; MIPS64: clz     $2, $4
+; MIPS64: jr      $ra
+; MIPS64: clz     $3, $5
+
+  %ret = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %x, i1 true)
+  ret <2 x i32> %ret
+}
+
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D4645.11817.patch
Type: text/x-patch
Size: 1088 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20140723/cc4cd188/attachment.bin>