[ARM] When a bitcast is about to be turned into a VMOVDRR, try to combine it

[oota-llvm.git] / test / CodeGen / ARM / atomic-64bit.ll

diff --git a/test/CodeGen/ARM/atomic-64bit.ll b/test/CodeGen/ARM/atomic-64bit.ll
index db092de38759cb8f915ff44b8116020e90441575..573cd45c0825edecbc5ac17bd5ff78d47bf60664 100644 (file)
--- a/test/CodeGen/ARM/atomic-64bit.ll
+++ b/test/CodeGen/ARM/atomic-64bit.ll
@@ -1,6 +1,6 @@
 ; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-LE
 ; RUN: llc < %s -mtriple=thumbv7-none-linux-gnueabihf | FileCheck %s --check-prefix=CHECK-THUMB --check-prefix=CHECK-THUMB-LE
-; RUN: llc < %s -mtriple=armebv7 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BE
+; RUN: llc < %s -mtriple=armebv7 -target-abi apcs | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BE
 ; RUN: llc < %s -mtriple=thumbebv7-none-linux-gnueabihf | FileCheck %s --check-prefix=CHECK-THUMB --check-prefix=CHECK-THUMB-BE
 
 define i64 @test1(i64* %ptr, i64 %val) {
@@ -171,9 +171,10 @@ define i64 @test6(i64* %ptr, i64 %val) {
 
 define i64 @test7(i64* %ptr, i64 %val1, i64 %val2) {
 ; CHECK-LABEL: test7:
-; CHECK: dmb {{ish$}}
+; CHECK-DAG: mov [[VAL1LO:r[0-9]+]], r1
+; CHECK-DAG: dmb {{ish$}}
 ; CHECK: ldrexd [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
-; CHECK-LE-DAG: eor     [[MISMATCH_LO:r[0-9]+]], [[REG1]], r1
+; CHECK-LE-DAG: eor     [[MISMATCH_LO:r[0-9]+]], [[REG1]], [[VAL1LO]]
 ; CHECK-LE-DAG: eor     [[MISMATCH_HI:r[0-9]+]], [[REG2]], r2
 ; CHECK-BE-DAG: eor     [[MISMATCH_LO:r[0-9]+]], [[REG2]], r2
 ; CHECK-BE-DAG: eor     [[MISMATCH_HI:r[0-9]+]], [[REG1]], r1
@@ -198,7 +199,8 @@ define i64 @test7(i64* %ptr, i64 %val1, i64 %val2) {
 ; CHECK-THUMB: bne
 ; CHECK-THUMB: dmb {{ish$}}
 
-  %r = cmpxchg i64* %ptr, i64 %val1, i64 %val2 seq_cst seq_cst
+  %pair = cmpxchg i64* %ptr, i64 %val1, i64 %val2 seq_cst seq_cst
+  %r = extractvalue { i64, i1 } %pair, 0
   ret i64 %r
 }
 
@@ -206,13 +208,19 @@ define i64 @test7(i64* %ptr, i64 %val1, i64 %val2) {
 define i64 @test8(i64* %ptr) {
 ; CHECK-LABEL: test8:
 ; CHECK: ldrexd [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
+; CHECK-NOT: strexd
+; CHECK: clrex
+; CHECK-NOT: strexd
 ; CHECK: dmb {{ish$}}
 
 ; CHECK-THUMB-LABEL: test8:
 ; CHECK-THUMB: ldrexd [[REG1:[a-z0-9]+]], [[REG2:[a-z0-9]+]]
+; CHECK-THUMB-NOT: strexd
+; CHECK-THUMB: clrex
+; CHECK-THUMB-NOT: strexd
 ; CHECK-THUMB: dmb {{ish$}}
 
-  %r = load atomic i64* %ptr seq_cst, align 8
+  %r = load atomic i64, i64* %ptr seq_cst, align 8
   ret i64 %r
 }