From b9d6b8449d245ee1607f6f197b29befbf8c41a1e Mon Sep 17 00:00:00 2001
From: Nadav Rotem <nrotem@apple.com>
Date: Sat, 18 Aug 2012 17:53:03 +0000
Subject: Reapply r162160 with a fix: Optimize Arith->Trunc->SETCC sequence to
 allow better compare/branch code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162172 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/2012-08-16-setcc.ll | 45 ++++++++++++++++++++++++++++++++++++
 test/CodeGen/X86/fold-load.ll        |  4 ++--
 2 files changed, 47 insertions(+), 2 deletions(-)
 create mode 100644 test/CodeGen/X86/2012-08-16-setcc.ll

(limited to 'test')

diff --git a/test/CodeGen/X86/2012-08-16-setcc.ll b/test/CodeGen/X86/2012-08-16-setcc.ll
new file mode 100644
index 0000000..ed51156
--- /dev/null
+++ b/test/CodeGen/X86/2012-08-16-setcc.ll
@@ -0,0 +1,45 @@
+; RUN: llc < %s -mtriple=x86_64-apple-macosx | FileCheck %s
+
+; rdar://12081007
+
+; CHECK: and_1:
+; CHECK: andb
+; CHECK-NEXT: cmovnel
+; CHECK: ret
+define i32 @and_1(i8 zeroext %a, i8 zeroext %b, i32 %x) {
+  %1 = and i8 %b, %a
+  %2 = icmp ne i8 %1, 0
+  %3 = select i1 %2, i32 %x, i32 0
+  ret i32 %3
+}
+
+; CHECK: and_2:
+; CHECK: andb
+; CHECK-NEXT: setne
+; CHECK: ret
+define zeroext i1 @and_2(i8 zeroext %a, i8 zeroext %b) {
+  %1 = and i8 %b, %a
+  %2 = icmp ne i8 %1, 0
+  ret i1 %2
+}
+
+; CHECK: xor_1:
+; CHECK: xorb
+; CHECK-NEXT: cmovnel
+; CHECK: ret
+define i32 @xor_1(i8 zeroext %a, i8 zeroext %b, i32 %x) {
+  %1 = xor i8 %b, %a
+  %2 = icmp ne i8 %1, 0
+  %3 = select i1 %2, i32 %x, i32 0
+  ret i32 %3
+}
+
+; CHECK: xor_2:
+; CHECK: xorb
+; CHECK-NEXT: setne
+; CHECK: ret
+define zeroext i1 @xor_2(i8 zeroext %a, i8 zeroext %b) {
+  %1 = xor i8 %b, %a
+  %2 = icmp ne i8 %1, 0
+  ret i1 %2
+}
diff --git a/test/CodeGen/X86/fold-load.ll b/test/CodeGen/X86/fold-load.ll
index c961f75..d836665 100644
--- a/test/CodeGen/X86/fold-load.ll
+++ b/test/CodeGen/X86/fold-load.ll
@@ -57,13 +57,13 @@ entry:
   %0 = load i32* %P, align 4
   %1 = load i32* %Q, align 4
   %2 = xor i32 %0, %1
-  %3 = and i32 %2, 65535
+  %3 = and i32 %2, 89947
   %4 = icmp eq i32 %3, 0
   br i1 %4, label %exit, label %land.end
 
 exit:
   %shr.i.i19 = xor i32 %1, %0
-  %5 = and i32 %shr.i.i19, 2147418112
+  %5 = and i32 %shr.i.i19, 3456789123
   %6 = icmp eq i32 %5, 0
   br label %land.end
 
-- 
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