From: Michael Kuperstein <michael.m.kuperstein@intel.com>
Date: Wed, 21 Jan 2015 14:44:05 +0000 (+0000)
Subject: [x32] Fast ISel should use LEA64_32r instead of LEA32r to adjust addresses in x32... 
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ada9fa1ca93e407f0f5211c0bdf1c338de997937;p=platform%2Fupstream%2Fllvm.git

[x32] Fast ISel should use LEA64_32r instead of LEA32r to adjust addresses in x32 mode.

llvm-svn: 226661
---

diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp
index 5d71eac..2269f3f 100644
--- a/llvm/lib/Target/X86/X86FastISel.cpp
+++ b/llvm/lib/Target/X86/X86FastISel.cpp
@@ -3224,7 +3224,10 @@ unsigned X86FastISel::X86MaterializeGV(const GlobalValue *GV, MVT VT) {
               ResultReg)
         .addGlobalAddress(GV);
     } else {
-      unsigned Opc = TLI.getPointerTy() == MVT::i32 ? X86::LEA32r : X86::LEA64r;
+      unsigned Opc = TLI.getPointerTy() == MVT::i32
+                     ? (Subtarget->isTarget64BitILP32()
+                        ? X86::LEA64_32r : X86::LEA32r)
+                     : X86::LEA64r;
       addFullAddress(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
                              TII.get(Opc), ResultReg), AM);
     }
@@ -3266,7 +3269,10 @@ unsigned X86FastISel::fastMaterializeAlloca(const AllocaInst *C) {
   X86AddressMode AM;
   if (!X86SelectAddress(C, AM))
     return 0;
-  unsigned Opc = TLI.getPointerTy() == MVT::i32 ? X86::LEA32r : X86::LEA64r;
+  unsigned Opc = TLI.getPointerTy() == MVT::i32
+                 ? (Subtarget->isTarget64BitILP32()
+                    ? X86::LEA64_32r : X86::LEA32r)
+                 : X86::LEA64r;
   const TargetRegisterClass* RC = TLI.getRegClassFor(TLI.getPointerTy());
   unsigned ResultReg = createResultReg(RC);
   addFullAddress(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
diff --git a/llvm/test/CodeGen/X86/x32-lea-1.ll b/llvm/test/CodeGen/X86/x32-lea-1.ll
new file mode 100644
index 0000000..7ccb34d
--- /dev/null
+++ b/llvm/test/CodeGen/X86/x32-lea-1.ll
@@ -0,0 +1,10 @@
+; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -O0 | FileCheck %s
+; CHECK: leal {{[-0-9]*}}(%r{{s|b}}p),
+; CHECK-NOT: leal {{[-0-9]*}}(%e{{s|b}}p),
+
+define void @foo(i32** %p) {
+  %a = alloca i32, i32 10
+  %addr = getelementptr i32* %a, i32 4
+  store i32* %addr, i32** %p
+  ret void
+}