Catch more cases where 2-address pass should 3-addressify instructions. rdar://9002648.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126811 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 16 insertions, 6 deletions

diff --git a/test/CodeGen/X86/iabs.ll b/test/CodeGen/X86/iabs.ll
index 6a79ee8792..a8ba0155fd 100644
--- a/test/CodeGen/X86/iabs.ll
+++ b/test/CodeGen/X86/iabs.ll
@@ -1,12 +1,11 @@
 ; RUN: llc < %s -march=x86-64 -stats  |& \
-; RUN:   grep {6 .*Number of machine instrs printed}
+; RUN:   grep {5 .*Number of machine instrs printed}
 
 ;; Integer absolute value, should produce something at least as good as:
-;;       movl %edi, %eax
-;;       sarl $31, %eax
-;;       addl %eax, %edi
-;;       xorl %eax, %edi
-;;       movl %edi, %eax
+;;       movl %edi, %ecx
+;;       sarl $31, %ecx
+;;       leal (%rdi,%rcx), %eax
+;;       xorl %ecx, %eax
 ;;       ret
 define i32 @test(i32 %a) nounwind {
         %tmp1neg = sub i32 0, %a
diff --git a/test/CodeGen/X86/twoaddr-lea.ll b/test/CodeGen/X86/twoaddr-lea.ll
index ec16dfe172..a1d797feea 100644
--- a/test/CodeGen/X86/twoaddr-lea.ll
+++ b/test/CodeGen/X86/twoaddr-lea.ll
@@ -34,3 +34,14 @@ entry:
  %add5 = add i32 %add3, %d
  ret i32 %add5
 }
+
+; rdar://9002648
+define i64 @test3(i64 %x) nounwind readnone ssp {
+entry:
+; CHECK: test3:
+; CHECK: leaq (%rdi,%rdi), %rax
+; CHECK-NOT: addq
+; CHECK-NEXT: ret
+  %0 = shl i64 %x, 1
+  ret i64 %0
+}