From fe9dbe0066ba4a35cb68fb281e6f6649ffa85ae9 Mon Sep 17 00:00:00 2001 From: Michael Liao Date: Thu, 7 Mar 2013 01:01:29 +0000 Subject: Fix two remaining issue after fixing PR15355 when CMOV is not available - Phi nodes should be replaced/updated after lowering CMOV into branch because 'mainMBB' updating operand in Phi node is changed. - Add EFLAGS in livein before lowering the 2nd CMOV. It's necessary as we will reuse the EFLAGS generated before the 1st lowered CMOV, which won't clobber EFLAGS. However, we need explicitly specify that. - '-attr=-cmov' test case are added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176598 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/atomic-minmax-i6432.ll | 41 +++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'test/CodeGen/X86/atomic-minmax-i6432.ll') diff --git a/test/CodeGen/X86/atomic-minmax-i6432.ll b/test/CodeGen/X86/atomic-minmax-i6432.ll index 1a6db7781f..62f784f696 100644 --- a/test/CodeGen/X86/atomic-minmax-i6432.ll +++ b/test/CodeGen/X86/atomic-minmax-i6432.ll @@ -1,4 +1,5 @@ ; RUN: llc -march=x86 -mattr=+cmov -mtriple=i386-pc-linux -verify-machineinstrs < %s | FileCheck %s -check-prefix=LINUX +; RUN: llc -march=x86 -mattr=-cmov -mtriple=i386-pc-linux -verify-machineinstrs < %s | FileCheck %s -check-prefix=NOCMOV ; RUN: llc -march=x86 -mtriple=i386-macosx -relocation-model=pic -verify-machineinstrs < %s | FileCheck %s -check-prefix=PIC @sc64 = external global i64 @@ -16,6 +17,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setl +; NOCMOV: cmpl +; NOCMOV: setl +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %2 = atomicrmw min i64* @sc64, i64 6 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -27,6 +38,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setg +; NOCMOV: cmpl +; NOCMOV: setg +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %3 = atomicrmw umax i64* @sc64, i64 7 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -38,6 +59,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setb +; NOCMOV: cmpl +; NOCMOV: setb +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %4 = atomicrmw umin i64* @sc64, i64 8 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -49,6 +80,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: seta +; NOCMOV: cmpl +; NOCMOV: seta +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] ret void } -- cgit v1.2.3