Rebased PNaCl localmods in LLVM to 223109

test/Transforms/NaCl/atomic/lock_.ll

+; RUN: opt -nacl-rewrite-atomics -pnacl-memory-order-seq-cst-only=false -S < %s | FileCheck %s
+
+; Each of these tests validates that the corresponding legacy GCC-style builtins
+; are properly rewritten to NaCl atomic builtins. Only the GCC-style builtins
+; that have corresponding primitives in C11/C++11 and which emit different code
+; are tested. These legacy GCC-builtins only support sequential-consistency
+; (enum value 6).
+;
+; test_* tests the corresponding __sync_* builtin. See:
+; http://gcc.gnu.org/onlinedocs/gcc-4.8.1/gcc/_005f_005fsync-Builtins.html
+
+target datalayout = "p:32:32:32"
+
+; CHECK-LABEL: @test_lock_test_and_set_i8
+define zeroext i8 @test_lock_test_and_set_i8(i8* %ptr, i8 zeroext %value) {
+  ; CHECK-NEXT: %res = call i8 @llvm.nacl.atomic.rmw.i8(i32 6, i8* %ptr, i8 %value, i32 6)
+  %res = atomicrmw xchg i8* %ptr, i8 %value seq_cst
+  ret i8 %res  ; CHECK-NEXT: ret i8 %res
+}
+
+; CHECK-LABEL: @test_lock_release_i8
+define void @test_lock_release_i8(i8* %ptr) {
+  ; CHECK-NEXT: call void @llvm.nacl.atomic.store.i8(i8 0, i8* %ptr, i32 4)
+  store atomic i8 0, i8* %ptr release, align 1
+  ret void  ; CHECK-NEXT: ret void
+}
+
+; CHECK-LABEL: @test_lock_test_and_set_i16
+define zeroext i16 @test_lock_test_and_set_i16(i16* %ptr, i16 zeroext %value) {
+  ; CHECK-NEXT: %res = call i16 @llvm.nacl.atomic.rmw.i16(i32 6, i16* %ptr, i16 %value, i32 6)
+  %res = atomicrmw xchg i16* %ptr, i16 %value seq_cst
+  ret i16 %res  ; CHECK-NEXT: ret i16 %res
+}
+
+; CHECK-LABEL: @test_lock_release_i16
+define void @test_lock_release_i16(i16* %ptr) {
+  ; CHECK-NEXT: call void @llvm.nacl.atomic.store.i16(i16 0, i16* %ptr, i32 4)
+  store atomic i16 0, i16* %ptr release, align 2
+  ret void  ; CHECK-NEXT: ret void
+}
+
+; CHECK-LABEL: @test_lock_test_and_set_i32
+define i32 @test_lock_test_and_set_i32(i32* %ptr, i32 %value) {
+  ; CHECK-NEXT: %res = call i32 @llvm.nacl.atomic.rmw.i32(i32 6, i32* %ptr, i32 %value, i32 6)
+  %res = atomicrmw xchg i32* %ptr, i32 %value seq_cst
+  ret i32 %res  ; CHECK-NEXT: ret i32 %res
+}
+
+; CHECK-LABEL: @test_lock_release_i32
+define void @test_lock_release_i32(i32* %ptr) {
+  ; CHECK-NEXT: call void @llvm.nacl.atomic.store.i32(i32 0, i32* %ptr, i32 4)
+  store atomic i32 0, i32* %ptr release, align 4
+  ret void  ; CHECK-NEXT: ret void
+}
+
+; CHECK-LABEL: @test_lock_test_and_set_i64
+define i64 @test_lock_test_and_set_i64(i64* %ptr, i64 %value) {
+  ; CHECK-NEXT: %res = call i64 @llvm.nacl.atomic.rmw.i64(i32 6, i64* %ptr, i64 %value, i32 6)
+  %res = atomicrmw xchg i64* %ptr, i64 %value seq_cst
+  ret i64 %res  ; CHECK-NEXT: ret i64 %res
+}
+
+; CHECK-LABEL: @test_lock_release_i64
+define void @test_lock_release_i64(i64* %ptr) {
+  ; CHECK-NEXT: call void @llvm.nacl.atomic.store.i64(i64 0, i64* %ptr, i32 4)
+  store atomic i64 0, i64* %ptr release, align 8
+  ret void  ; CHECK-NEXT: ret void
+}