1// RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o %t1 %s 2// RUN: FileCheck -check-prefix=CHECK-I386 < %t1 %s 3 4// RUN: %clang_cc1 -triple armv6-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -target-abi apcs-gnu -emit-llvm -o %t2 %s 5// RUN: FileCheck -check-prefix=CHECK-ARM < %t2 %s 6 7@interface I0 { 8@public 9 unsigned x:15; 10 unsigned y: 1; 11} 12@end 13 14// Check that we don't try to use an i32 load here, which would reach beyond the 15// end of the structure. 16// 17// CHECK-I386: define i32 @f0( 18// CHECK-I386: [[t0_0:%.*]] = load i16* {{.*}}, align 1 19// CHECK-I386: lshr i16 [[t0_0]], 7 20// CHECK-I386: } 21int f0(I0 *a) { 22 return a->y; 23} 24 25// Check that we can handled straddled loads. 26// 27// CHECK-ARM: define i32 @f1( 28// CHECK-ARM: [[t1_ptr:%.*]] = getelementptr 29// CHECK-ARM: [[t1_base:%.*]] = bitcast i8* [[t1_ptr]] to i32* 30// CHECK-ARM: [[t1_0:%.*]] = load i32* [[t1_base]], align 1 31// CHECK-ARM: lshr i32 [[t1_0]], 1 32// CHECK-ARM: [[t1_base_2_cast:%.*]] = bitcast i32* %{{.*}} to i8* 33// CHECK-ARM: [[t1_base_2:%.*]] = getelementptr i8* [[t1_base_2_cast]] 34// CHECK-ARM: [[t1_1:%.*]] = load i8* [[t1_base_2]], align 1 35// CHECK-ARM: and i8 [[t1_1:%.*]], 1 36// CHECK-ARM: } 37@interface I1 { 38@public 39 unsigned x: 1; 40 unsigned y:32; 41} 42@end 43 44int f1(I1 *a) { return a->y; } 45