1 // RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-fragile-abi -emit-llvm -o %t1 %s 2 // RUN: FileCheck -check-prefix=CHECK-I386 < %t1 %s 3 4 // RUN: %clang_cc1 -triple armv6-apple-darwin10 -fobjc-fragile-abi -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: } 21 int 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 44 int f1(I1 *a) { return a->y; } 45
