From 9626447e70a3c8dc88b09f84414ee416a39518b1 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 17 Mar 2009 02:45:40 +0000
Subject: [PATCH] Recognize bswapl as bswap too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67072 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86TargetAsmInfo.cpp  | 7 +++++--
 test/CodeGen/X86/bswap-inline-asm.ll | 5 +++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lib/Target/X86/X86TargetAsmInfo.cpp b/lib/Target/X86/X86TargetAsmInfo.cpp
index f3faa7022cd..f1d97a38932 100644
--- a/lib/Target/X86/X86TargetAsmInfo.cpp
+++ b/lib/Target/X86/X86TargetAsmInfo.cpp
@@ -411,8 +411,11 @@ bool X86TargetAsmInfo<BaseTAI>::ExpandInlineAsm(CallInst *CI) const {
 
     // bswap $0
     if (AsmPieces.size() == 2 &&
-        (AsmPieces[0] == "bswap" || AsmPieces[0] == "bswapq") &&
-        (AsmPieces[1] == "$0" || AsmPieces[1] == "${0:q}")) {
+        (AsmPieces[0] == "bswap" ||
+         AsmPieces[0] == "bswapq" ||
+         AsmPieces[0] == "bswapl") &&
+        (AsmPieces[1] == "$0" ||
+         AsmPieces[1] == "${0:q}")) {
       // No need to check constraints, nothing other than the equivalent of
       // "=r,0" would be valid here.
       return LowerToBSwap(CI);
diff --git a/test/CodeGen/X86/bswap-inline-asm.ll b/test/CodeGen/X86/bswap-inline-asm.ll
index c44d845c832..91f8310361a 100644
--- a/test/CodeGen/X86/bswap-inline-asm.ll
+++ b/test/CodeGen/X86/bswap-inline-asm.ll
@@ -1,6 +1,7 @@
 ; RUN: llvm-as < %s | llc -march=x86-64 > %t
 ; RUN: not grep APP %t
 ; RUN: grep bswapq %t | count 2
+; RUN: grep bswapl %t | count 1
 
 define i64 @foo(i64 %x) nounwind {
 	%asmtmp = tail call i64 asm "bswap $0", "=r,0,~{dirflag},~{fpsr},~{flags}"(i64 %x) nounwind
@@ -10,3 +11,7 @@ define i64 @bar(i64 %x) nounwind {
 	%asmtmp = tail call i64 asm "bswapq ${0:q}", "=r,0,~{dirflag},~{fpsr},~{flags}"(i64 %x) nounwind
 	ret i64 %asmtmp
 }
+define i32 @pen(i32 %x) nounwind {
+	%asmtmp = tail call i32 asm "bswapl ${0:q}", "=r,0,~{dirflag},~{fpsr},~{flags}"(i32 %x) nounwind
+	ret i32 %asmtmp
+}
-- 
2.34.1