Reapply [FastISel][X86] Use XOR to materialize the "0" value (r215594).

Note: This was originally reverted to track down a buildbot error. Reapply
without any modifications.

llvm-svn: 216011

4 files changed, 11 insertions, 11 deletions

diff --git a/llvm/test/CodeGen/X86/fast-isel-cmp-branch3.ll b/llvm/test/CodeGen/X86/fast-isel-cmp-branch3.ll
index a3f6851ca24..0df782d18ec 100644
--- a/llvm/test/CodeGen/X86/fast-isel-cmp-branch3.ll
+++ b/llvm/test/CodeGen/X86/fast-isel-cmp-branch3.ll
@@ -351,7 +351,7 @@ bb1:
 define i32 @icmp_eq(i32 %x) {
 ; CHECK-LABEL: icmp_eq
 ; CHECK-NOT:   cmpl
-; CHECK:       movl $0, %eax
+; CHECK:       xorl %eax, %eax
   %1 = icmp eq i32 %x, %x
   br i1 %1, label %bb1, label %bb2
 bb2:
@@ -387,7 +387,7 @@ bb1:
 define i32 @icmp_uge(i32 %x) {
 ; CHECK-LABEL: icmp_uge
 ; CHECK-NOT:   cmpl
-; CHECK:       movl $0, %eax
+; CHECK:       xorl %eax, %eax
   %1 = icmp uge i32 %x, %x
   br i1 %1, label %bb1, label %bb2
 bb2:
@@ -411,7 +411,7 @@ bb1:
 define i32 @icmp_ule(i32 %x) {
 ; CHECK-LABEL: icmp_ule
 ; CHECK-NOT:   cmpl
-; CHECK:       movl $0, %eax
+; CHECK:       xorl %eax, %eax
   %1 = icmp ule i32 %x, %x
   br i1 %1, label %bb1, label %bb2
 bb2:
@@ -435,7 +435,7 @@ bb1:
 define i32 @icmp_sge(i32 %x) {
 ; CHECK-LABEL: icmp_sge
 ; CHECK-NOT:   cmpl
-; CHECK:       movl $0, %eax
+; CHECK:       xorl %eax, %eax
   %1 = icmp sge i32 %x, %x
   br i1 %1, label %bb1, label %bb2
 bb2:
@@ -459,7 +459,7 @@ bb1:
 define i32 @icmp_sle(i32 %x) {
 ; CHECK-LABEL: icmp_sle
 ; CHECK-NOT:   cmpl
-; CHECK:       movl $0, %eax
+; CHECK:       xorl %eax, %eax
   %1 = icmp sle i32 %x, %x
   br i1 %1, label %bb1, label %bb2
 bb2:
diff --git a/llvm/test/CodeGen/X86/fast-isel-mem.ll b/llvm/test/CodeGen/X86/fast-isel-mem.ll
index cd2dc1d02c8..eca1ae9f02a 100644
--- a/llvm/test/CodeGen/X86/fast-isel-mem.ll
+++ b/llvm/test/CodeGen/X86/fast-isel-mem.ll
@@ -36,11 +36,11 @@ entry:
 	store i32 (...)** getelementptr ([4 x i32 (...)*]* @LotsStuff, i32 0, i32 2), i32 (...)*** null, align 4
 	ret void
 ; CHECK: _t:
-; CHECK:	movl	$0, %eax
+; CHECK:	xorl    %eax, %eax
 ; CHECK:	movl	L_LotsStuff$non_lazy_ptr, %ecx
 
 ; ATOM: _t:
 ; ATOM:         movl    L_LotsStuff$non_lazy_ptr, %e{{..}}
-; ATOM:         movl    $0, %e{{..}}
+; ATOM:         xorl    %e{{..}}, %e{{..}}
 
 }
diff --git a/llvm/test/CodeGen/X86/fast-isel-x86-64.ll b/llvm/test/CodeGen/X86/fast-isel-x86-64.ll
index 29f1f264a72..33abc385ebd 100644
--- a/llvm/test/CodeGen/X86/fast-isel-x86-64.ll
+++ b/llvm/test/CodeGen/X86/fast-isel-x86-64.ll
@@ -144,7 +144,7 @@ if.end:                                           ; preds = %if.then, %entry
 ; CHECK-LABEL: test12:
 ; CHECK: testb	$1,
 ; CHECK-NEXT: je L
-; CHECK-NEXT: movl $0, %edi
+; CHECK-NEXT: xorl %edi, %edi
 ; CHECK-NEXT: callq
 }
 
@@ -154,7 +154,7 @@ define void @test13() nounwind {
   call void @test13f(i1 0)
   ret void
 ; CHECK-LABEL: test13:
-; CHECK: movl $0, %edi
+; CHECK: xorl %edi, %edi
 ; CHECK-NEXT: callq
 }
 
@@ -278,7 +278,7 @@ entry:
   call void @foo22(i32 3)
   ret void
 ; CHECK-LABEL: test22:
-; CHECK: movl	$0, %edi
+; CHECK: xorl	%edi, %edi
 ; CHECK: callq	_foo22
 ; CHECK: movl	$1, %edi
 ; CHECK: callq	_foo22
diff --git a/llvm/test/DebugInfo/X86/fission-ranges.ll b/llvm/test/DebugInfo/X86/fission-ranges.ll
index 135837582fc..6e3bbfef75c 100644
--- a/llvm/test/DebugInfo/X86/fission-ranges.ll
+++ b/llvm/test/DebugInfo/X86/fission-ranges.ll
@@ -25,7 +25,7 @@
 ; if they've changed due to a bugfix, change in register allocation, etc.
 
 ; CHECK: [[A]]: Beginning address index: 2
-; CHECK-NEXT:                    Length: 199
+; CHECK-NEXT:                    Length: 190
 ; CHECK-NEXT:      Location description: 11 00
 ; CHECK-NEXT: {{^$}}
 ; CHECK-NEXT:   Beginning address index: 3