73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm < %s | FileCheck -enable-var-scope -check-prefixes=CHECK,X86 %s
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// RUN: %clang_cc1 -triple amdgcn -emit-llvm < %s | FileCheck -enable-var-scope -check-prefixes=CHECK,AMDGCN %s
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// CHECK: @foo ={{.*}} addrspace(1) global
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int foo __attribute__((address_space(1)));
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// CHECK: @ban ={{.*}} addrspace(1) global
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int ban[10] __attribute__((address_space(1)));
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// CHECK: @a ={{.*}} global
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int a __attribute__((address_space(0)));
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// CHECK-LABEL: define{{.*}} i32 @test1()
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// CHECK: load i32, i32 addrspace(1)* @foo
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int test1() { return foo; }
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// CHECK-LABEL: define{{.*}} i32 @test2(i32 %i)
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// CHECK: load i32, i32 addrspace(1)*
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// CHECK-NEXT: ret i32
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int test2(int i) { return ban[i]; }
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// Both A and B point into addrspace(2).
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__attribute__((address_space(2))) int *A, *B;
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// CHECK-LABEL: define{{.*}} void @test3()
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// X86: load i32 addrspace(2)*, i32 addrspace(2)** @B
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// AMDGCN: load i32 addrspace(2)*, i32 addrspace(2)** addrspacecast (i32 addrspace(2)* addrspace(1)* @B to i32 addrspace(2)**)
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// CHECK: load i32, i32 addrspace(2)*
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// X86: load i32 addrspace(2)*, i32 addrspace(2)** @A
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// AMDGCN: load i32 addrspace(2)*, i32 addrspace(2)** addrspacecast (i32 addrspace(2)* addrspace(1)* @A to i32 addrspace(2)**)
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// CHECK: store i32 {{.*}}, i32 addrspace(2)*
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void test3() {
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*A = *B;
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}
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// PR7437
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typedef struct {
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float aData[1];
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} MyStruct;
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// CHECK-LABEL: define{{.*}} void @test4(
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// CHECK: call void @llvm.memcpy.p0i8.p2i8
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// CHECK: call void @llvm.memcpy.p2i8.p0i8
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void test4(MyStruct __attribute__((address_space(2))) *pPtr) {
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MyStruct s = pPtr[0];
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pPtr[0] = s;
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}
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// Make sure the right address space is used when doing arithmetic on a void
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// pointer. Make sure no invalid bitcast is introduced.
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// CHECK-LABEL: @void_ptr_arithmetic_test(
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// X86: [[ALLOCA:%.*]] = alloca i8 addrspace(1)*
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// X86-NEXT: store i8 addrspace(1)* %arg, i8 addrspace(1)** [[ALLOCA]]
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// X86-NEXT: load i8 addrspace(1)*, i8 addrspace(1)** [[ALLOCA]]
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// X86-NEXT: getelementptr i8, i8 addrspace(1)*
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// X86-NEXT: ret i8 addrspace(1)*
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void __attribute__((address_space(1)))*
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void_ptr_arithmetic_test(void __attribute__((address_space(1))) *arg) {
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return arg + 4;
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}
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// CHECK-LABEL: define{{.*}} i32* @test5(
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const unsigned *test5() {
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// Intentionally leave a part of an array uninitialized. This triggers a
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// different code path contrary to a fully initialized array.
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// CHECK: ret i32* getelementptr inbounds ([256 x i32]
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static const unsigned bars[256] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 15, 16, 17, 18, 19, 20};
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return &bars[0];
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}
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