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CodeGen peephole: fold redundant phys reg copies
[oota-llvm.git] / test / CodeGen / X86 / atomic16.ll
diff --git a/test/CodeGen/X86/atomic16.ll b/test/CodeGen/X86/atomic16.ll
index e276d47e34b258380a903d1109df69dc040b632a..f6892de43d894643339639b2d2a5e0fb6b7bf7c0 100644 (file)
--- a/test/CodeGen/X86/atomic16.ll
+++ b/test/CodeGen/X86/atomic16.ll
@@ -1,11 +1,11 @@
-; RUN: llc < %s -O0 -march=x86-64 -mcpu=corei7 | FileCheck %s --check-prefix X64
-; RUN: llc < %s -O0 -march=x86 -mcpu=corei7 | FileCheck %s --check-prefix X32
+; RUN: llc < %s -O0 -mtriple=x86_64-unknown-unknown -mcpu=corei7 -verify-machineinstrs -show-mc-encoding | FileCheck %s --check-prefix X64
+; RUN: llc < %s -O0 -mtriple=i386-unknown-unknown -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X32
 
 @sc16 = external global i16
 
 define void @atomic_fetch_add16() nounwind {
-; X64:   atomic_fetch_add16
-; X32:   atomic_fetch_add16
+; X64-LABEL:   atomic_fetch_add16
+; X32-LABEL:   atomic_fetch_add16
 entry:
 ; 32-bit
   %t1 = atomicrmw add  i16* @sc16, i16 1 acquire
@@ -15,17 +15,17 @@ entry:
 ; X32:       incw
   %t2 = atomicrmw add  i16* @sc16, i16 3 acquire
 ; X64:       lock
-; X64:       addw $3
+; X64:       addw $3, {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       addw $3
   %t3 = atomicrmw add  i16* @sc16, i16 5 acquire
 ; X64:       lock
-; X64:       xaddw
+; X64:       xaddw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       xaddw
   %t4 = atomicrmw add  i16* @sc16, i16 %t3 acquire
 ; X64:       lock
-; X64:       addw
+; X64:       addw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       addw
   ret void
@@ -34,8 +34,8 @@ entry:
 }
 
 define void @atomic_fetch_sub16() nounwind {
-; X64:   atomic_fetch_sub16
-; X32:   atomic_fetch_sub16
+; X64-LABEL:   atomic_fetch_sub16
+; X32-LABEL:   atomic_fetch_sub16
   %t1 = atomicrmw sub  i16* @sc16, i16 1 acquire
 ; X64:       lock
 ; X64:       decw
@@ -43,17 +43,17 @@ define void @atomic_fetch_sub16() nounwind {
 ; X32:       decw
   %t2 = atomicrmw sub  i16* @sc16, i16 3 acquire
 ; X64:       lock
-; X64:       subw $3
+; X64:       subw $3, {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       subw $3
   %t3 = atomicrmw sub  i16* @sc16, i16 5 acquire
 ; X64:       lock
-; X64:       xaddw
+; X64:       xaddw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       xaddw
   %t4 = atomicrmw sub  i16* @sc16, i16 %t3 acquire
 ; X64:       lock
-; X64:       subw
+; X64:       subw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       subw
   ret void
@@ -62,23 +62,23 @@ define void @atomic_fetch_sub16() nounwind {
 }
 
 define void @atomic_fetch_and16() nounwind {
-; X64:   atomic_fetch_and16
-; X32:   atomic_fetch_and16
+; X64-LABEL:   atomic_fetch_and16
+; X32-LABEL:   atomic_fetch_and16
   %t1 = atomicrmw and  i16* @sc16, i16 3 acquire
 ; X64:       lock
-; X64:       andw $3
+; X64:       andw $3, {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       andw $3
   %t2 = atomicrmw and  i16* @sc16, i16 5 acquire
-; X64:       andw
+; X64:       andl
 ; X64:       lock
 ; X64:       cmpxchgw
-; X32:       andw
+; X32:       andl
 ; X32:       lock
 ; X32:       cmpxchgw
   %t3 = atomicrmw and  i16* @sc16, i16 %t2 acquire
 ; X64:       lock
-; X64:       andw
+; X64:       andw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       andw
   ret void
@@ -87,23 +87,23 @@ define void @atomic_fetch_and16() nounwind {
 }
 
 define void @atomic_fetch_or16() nounwind {
-; X64:   atomic_fetch_or16
-; X32:   atomic_fetch_or16
+; X64-LABEL:   atomic_fetch_or16
+; X32-LABEL:   atomic_fetch_or16
   %t1 = atomicrmw or   i16* @sc16, i16 3 acquire
 ; X64:       lock
-; X64:       orw $3
+; X64:       orw $3, {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       orw $3
   %t2 = atomicrmw or   i16* @sc16, i16 5 acquire
-; X64:       orw
+; X64:       orl
 ; X64:       lock
 ; X64:       cmpxchgw
-; X32:       orw
+; X32:       orl
 ; X32:       lock
 ; X32:       cmpxchgw
   %t3 = atomicrmw or   i16* @sc16, i16 %t2 acquire
 ; X64:       lock
-; X64:       orw
+; X64:       orw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       orw
   ret void
@@ -112,23 +112,23 @@ define void @atomic_fetch_or16() nounwind {
 }
 
 define void @atomic_fetch_xor16() nounwind {
-; X64:   atomic_fetch_xor16
-; X32:   atomic_fetch_xor16
+; X64-LABEL:   atomic_fetch_xor16
+; X32-LABEL:   atomic_fetch_xor16
   %t1 = atomicrmw xor  i16* @sc16, i16 3 acquire
 ; X64:       lock
-; X64:       xorw $3
+; X64:       xorw $3, {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       xorw $3
   %t2 = atomicrmw xor  i16* @sc16, i16 5 acquire
-; X64:       xorw
+; X64:       xorl
 ; X64:       lock
 ; X64:       cmpxchgw
-; X32:       xorw
+; X32:       xorl
 ; X32:       lock
 ; X32:       cmpxchgw
   %t3 = atomicrmw xor  i16* @sc16, i16 %t2 acquire
 ; X64:       lock
-; X64:       xorw
+; X64:       xorw {{.*}} # encoding: [0x66,0xf0
 ; X32:       lock
 ; X32:       xorw
   ret void
@@ -137,15 +137,15 @@ define void @atomic_fetch_xor16() nounwind {
 }
 
 define void @atomic_fetch_nand16(i16 %x) nounwind {
-; X64:   atomic_fetch_nand16
-; X32:   atomic_fetch_nand16
+; X64-LABEL:   atomic_fetch_nand16
+; X32-LABEL:   atomic_fetch_nand16
   %t1 = atomicrmw nand i16* @sc16, i16 %x acquire
-; X64:       andw
-; X64:       notw
+; X64:       andl
+; X64:       notl
 ; X64:       lock
 ; X64:       cmpxchgw
-; X32:       andw
-; X32:       notw
+; X32:       andl
+; X32:       notl
 ; X32:       lock
 ; X32:       cmpxchgw
   ret void
@@ -155,12 +155,16 @@ define void @atomic_fetch_nand16(i16 %x) nounwind {
 
 define void @atomic_fetch_max16(i16 %x) nounwind {
   %t1 = atomicrmw max  i16* @sc16, i16 %x acquire
-; X64:       cmpw
+; X64:       movswl
+; X64:       movswl
+; X64:       subl
 ; X64:       cmov
 ; X64:       lock
 ; X64:       cmpxchgw
 
-; X32:       cmpw
+; X32:       movswl
+; X32:       movswl
+; X32:       subl
 ; X32:       cmov
 ; X32:       lock
 ; X32:       cmpxchgw
@@ -171,12 +175,16 @@ define void @atomic_fetch_max16(i16 %x) nounwind {
 
 define void @atomic_fetch_min16(i16 %x) nounwind {
   %t1 = atomicrmw min  i16* @sc16, i16 %x acquire
-; X64:       cmpw
+; X64:       movswl
+; X64:       movswl
+; X64:       subl
 ; X64:       cmov
 ; X64:       lock
 ; X64:       cmpxchgw
 
-; X32:       cmpw
+; X32:       movswl
+; X32:       movswl
+; X32:       subl
 ; X32:       cmov
 ; X32:       lock
 ; X32:       cmpxchgw
@@ -187,12 +195,16 @@ define void @atomic_fetch_min16(i16 %x) nounwind {
 
 define void @atomic_fetch_umax16(i16 %x) nounwind {
   %t1 = atomicrmw umax i16* @sc16, i16 %x acquire
-; X64:       cmpw
+; X64:       movzwl
+; X64:       movzwl
+; X64:       subl
 ; X64:       cmov
 ; X64:       lock
 ; X64:       cmpxchgw
 
-; X32:       cmpw
+; X32:       movzwl
+; X32:       movzwl
+; X32:       subl
 ; X32:       cmov
 ; X32:       lock
 ; X32:       cmpxchgw
@@ -203,11 +215,16 @@ define void @atomic_fetch_umax16(i16 %x) nounwind {
 
 define void @atomic_fetch_umin16(i16 %x) nounwind {
   %t1 = atomicrmw umin i16* @sc16, i16 %x acquire
-; X64:       cmpw
+; X64:       movzwl
+; X64:       movzwl
+; X64:       subl
 ; X64:       cmov
 ; X64:       lock
 ; X64:       cmpxchgw
-; X32:       cmpw
+
+; X32:       movzwl
+; X32:       movzwl
+; X32:       subl
 ; X32:       cmov
 ; X32:       lock
 ; X32:       cmpxchgw
@@ -217,7 +234,7 @@ define void @atomic_fetch_umin16(i16 %x) nounwind {
 }
 
 define void @atomic_fetch_cmpxchg16() nounwind {
-  %t1 = cmpxchg i16* @sc16, i16 0, i16 1 acquire
+  %t1 = cmpxchg i16* @sc16, i16 0, i16 1 acquire acquire
 ; X64:       lock
 ; X64:       cmpxchgw
 ; X32:       lock
C/C++ LLVM-based compilers that forbids OOTA behaviors