From f1e8e550d891964106ca26667cb83d38d17fb1ae Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 14 May 2008 18:17:09 +0000
Subject: [PATCH] When bit-twiddling CondCode values for integer comparisons
 produces SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51112 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp |  1 +
 test/CodeGen/X86/pr2326.ll                | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 test/CodeGen/X86/pr2326.ll

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 058e60f5fc8..dc9d99131bf 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -293,6 +293,7 @@ ISD::CondCode ISD::getSetCCAndOperation(ISD::CondCode Op1, ISD::CondCode Op2,
     switch (Result) {
     default: break;
     case ISD::SETUO : Result = ISD::SETFALSE; break;  // SETUGT & SETULT
+    case ISD::SETOEQ:                                 // SETEQ  & SETU[LG]E
     case ISD::SETUEQ: Result = ISD::SETEQ   ; break;  // SETUGE & SETULE
     case ISD::SETOLT: Result = ISD::SETULT  ; break;  // SETULT & SETNE
     case ISD::SETOGT: Result = ISD::SETUGT  ; break;  // SETUGT & SETNE
diff --git a/test/CodeGen/X86/pr2326.ll b/test/CodeGen/X86/pr2326.ll
new file mode 100644
index 00000000000..6cf750c6d4b
--- /dev/null
+++ b/test/CodeGen/X86/pr2326.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep sete
+; PR2326
+
+define i32 @func_59(i32 %p_60) nounwind  {
+entry:
+	%l_108 = alloca i32		; <i32*> [#uses=2]
+	%tmp15 = load i32* null, align 4		; <i32> [#uses=1]
+	%tmp16 = load i32* %l_108, align 4		; <i32> [#uses=1]
+	%tmp17 = icmp eq i32 %tmp15, %tmp16		; <i1> [#uses=1]
+	%tmp1718 = zext i1 %tmp17 to i8		; <i8> [#uses=1]
+	%tmp19 = load i32* null, align 4		; <i32> [#uses=1]
+	%tmp20 = load i32* %l_108, align 4		; <i32> [#uses=1]
+	%tmp21 = icmp ule i32 %tmp19, %tmp20		; <i1> [#uses=1]
+	%tmp2122 = zext i1 %tmp21 to i8		; <i8> [#uses=1]
+	%toBool23 = icmp ne i8 %tmp1718, 0		; <i1> [#uses=1]
+	%toBool24 = icmp ne i8 %tmp2122, 0		; <i1> [#uses=1]
+	%tmp25 = and i1 %toBool23, %toBool24		; <i1> [#uses=1]
+	%tmp2526 = zext i1 %tmp25 to i8		; <i8> [#uses=1]
+	%tmp252627 = zext i8 %tmp2526 to i32		; <i32> [#uses=1]
+	%tmp29 = call i32 (...)* @func_15( i32 %tmp252627, i32 0 ) nounwind 		; <i32> [#uses=0]
+	unreachable
+}
+
+declare i32 @func_15(...)
-- 
2.11.0