mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-19 19:45:40 -04:00
6e938effaa
Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964
109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
// RUN: %clang_cc1 %s -triple x86_64-unknown-unknown -emit-llvm -o - | FileCheck %s
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struct P1 { char x[6]; } g1 = { "foo" };
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struct LP1 { struct P1 p1; };
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struct P2 { int a, b, c; } g2 = { 1, 2, 3 };
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struct LP2 { struct P2 p2; };
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struct LP2P2 { struct P2 p1, p2; };
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union UP2 { struct P2 p2; };
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struct LP3 { struct P1 p1[2]; } g3 = { { "dog" }, { "cat" } };
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struct LLP3 { struct LP3 l3; };
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union ULP3 { struct LP3 l3; };
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// CHECK-LABEL: test1
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void test1(void)
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{
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// CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i1 false)
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// CHECK: store i8 120, i8* %
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struct LP1 l = { .p1 = g1, .p1.x[2] = 'x' };
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}
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// CHECK-LABEL: test2
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void test2(void)
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{
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// CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i1 false)
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// CHECK: store i8 114, i8* %
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struct LP1 l = { .p1 = g1, .p1.x[1] = 'r' };
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}
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// CHECK-LABEL: test3
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void test3(void)
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{
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// CHECK: call void @llvm.memcpy{{.*}}%struct.P2* @g2{{.*}}i64 12, i1 false)
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// CHECK: store i32 10, i32* %
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struct LP2 l = { .p2 = g2, .p2.b = 10 };
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}
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// CHECK-LABEL: get235
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struct P2 get235()
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{
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struct P2 p = { 2, 3, 5 };
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return p;
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}
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// CHECK-LABEL: get456789
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struct LP2P2 get456789()
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{
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struct LP2P2 l = { { 4, 5, 6 }, { 7, 8, 9 } };
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return l;
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}
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// CHECK-LABEL: get123
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union UP2 get123()
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{
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union UP2 u = { { 1, 2, 3 } };
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return u;
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}
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// CHECK-LABEL: test4
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void test4(void)
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{
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// CHECK: [[CALL:%[a-z0-9]+]] = call {{.*}}@get123()
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// CHECK: store{{.*}}[[CALL]], {{.*}}[[TMP0:%[a-z0-9]+]]
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// CHECK: [[TMP1:%[a-z0-9]+]] = bitcast {{.*}}[[TMP0]]
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// CHECK: call void @llvm.memcpy{{.*}}[[TMP1]], i64 12, i1 false)
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// CHECK: store i32 100, i32* %
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struct LUP2 { union UP2 up; } var = { get123(), .up.p2.a = 100 };
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}
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// CHECK-LABEL: test5
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void test5(void)
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{
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// .l3 = g3
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// CHECK: call void @llvm.memcpy{{.*}}%struct.LP3, %struct.LP3* @g3{{.*}}i64 12, i1 false)
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// .l3.p1 = { [0] = g1 } implicitly sets [1] to zero
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// CHECK: call void @llvm.memcpy{{.*}}%struct.P1, %struct.P1* @g1{{.*}}i64 6, i1 false)
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// CHECK: getelementptr{{.*}}%struct.P1, %struct.P1*{{.*}}i64 1
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// CHECK: call void @llvm.memset{{.*}}i8 0, i64 6, i1 false)
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// .l3.p1[1].x[1] = 'x'
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// CHECK: store i8 120, i8* %
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struct LLP3 var = { .l3 = g3, .l3.p1 = { [0] = g1 }, .l3.p1[1].x[1] = 'x' };
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}
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// CHECK-LABEL: test6
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void test6(void)
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{
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// CHECK: [[LP:%[a-z0-9]+]] = getelementptr{{.*}}%struct.LLP2P2, %struct.LLP2P2*{{.*}}, i32 0, i32 0
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// CHECK: call {{.*}}get456789(%struct.LP2P2* {{.*}}[[LP]])
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// CHECK: [[CALL:%[a-z0-9]+]] = call {{.*}}@get235()
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// CHECK: store{{.*}}[[CALL]], {{.*}}[[TMP0:%[a-z0-9]+]]
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// CHECK: [[TMP1:%[a-z0-9]+]] = bitcast {{.*}}[[TMP0]]
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// CHECK: call void @llvm.memcpy{{.*}}[[TMP1]], i64 12, i1 false)
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// CHECK: store i32 10, i32* %
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struct LLP2P2 { struct LP2P2 lp; } var = { get456789(),
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.lp.p1 = get235(),
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.lp.p1.b = 10 };
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}
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