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43 lines
1.2 KiB
43 lines
1.2 KiB
4 months ago
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// RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o %t1 %s
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// RUN: FileCheck -check-prefix=CHECK-I386 < %t1 %s
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// RUN: %clang_cc1 -triple armv6-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -target-abi apcs-gnu -emit-llvm -o %t2 %s
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// RUN: FileCheck -check-prefix=CHECK-ARM < %t2 %s
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@interface I0 {
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@public
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unsigned x:15;
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unsigned y: 1;
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}
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@end
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// Check that we don't try to use an i32 load here, which would reach beyond the
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// end of the structure.
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//
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// CHECK-I386-LABEL: define i32 @f0(
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// CHECK-I386: [[t0_0:%.*]] = load i8, i8* {{.*}}, align 1
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// CHECK-I386: lshr i8 [[t0_0]], 7
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// CHECK-I386: }
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int f0(I0 *a) {
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return a->y;
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}
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// Check that we can handled straddled loads.
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//
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// CHECK-ARM-LABEL: define i32 @f1(
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// CHECK-ARM: [[t1_ptr:%.*]] = getelementptr
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// CHECK-ARM: [[t1_base:%.*]] = bitcast i8* [[t1_ptr]] to i40*
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// CHECK-ARM: [[t1_0:%.*]] = load i40, i40* [[t1_base]], align 1
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// CHECK-ARM: [[t1_1:%.*]] = lshr i40 [[t1_0]], 1
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// CHECK-ARM: [[t1_2:%.*]] = and i40 [[t1_1]],
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// CHECK-ARM: trunc i40 [[t1_2]] to i32
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// CHECK-ARM: }
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@interface I1 {
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@public
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unsigned x: 1;
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unsigned y:32;
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}
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@end
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int f1(I1 *a) { return a->y; }
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