// XFAIL: hexagon,sparc // (due to not having native load atomic support) // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s // RUN: %clang_cc1 -triple mips-linux-gnu -emit-llvm %s -o - | FileCheck %s void foo(int x) { _Atomic(int) i = 0; _Atomic(short) j = 0; // Check that multiply / divides on atomics produce a cmpxchg loop i *= 2; // CHECK: mul nsw i32 // CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4,)}} i /= 2; // CHECK: sdiv i32 // CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4, )}} j /= x; // CHECK: sdiv i32 // CHECK: {{(cmpxchg i16*|i1 @__atomic_compare_exchange\(i32 2, )}} } extern _Atomic _Bool b; _Bool bar() { // CHECK-LABEL: @bar // CHECK: %[[load:.*]] = load atomic i8, i8* @b seq_cst // CHECK: %[[tobool:.*]] = trunc i8 %[[load]] to i1 // CHECK: ret i1 %[[tobool]] return b; } extern _Atomic(_Complex int) x; void baz(int y) { // CHECK-LABEL: @baz // CHECK: {{store atomic|call void @__atomic_store}} x += y; } |