53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc < %s -march=bpfel -verify-machineinstrs | FileCheck %s
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; RUN: llc < %s -march=bpfeb -verify-machineinstrs | FileCheck %s
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; Source code:
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; struct test_t1 {
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; char a, b, c;
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; };
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; struct test_t2 {
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; int a, b, c, d, e;
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; };
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;
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; struct test_t1 g1;
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; struct test_t2 g2;
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; int test()
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; {
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; struct test_t1 t1 = {.c = 1};
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; struct test_t2 t2 = {.c = 1};
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; g1 = t1;
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; g2 = t2;
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; return 0;
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; }
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%struct.test_t1 = type { i8, i8, i8 }
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%struct.test_t2 = type { i32, i32, i32, i32, i32 }
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@test.t1 = private unnamed_addr constant %struct.test_t1 { i8 0, i8 0, i8 1 }, align 1
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@test.t2 = private unnamed_addr constant %struct.test_t2 { i32 0, i32 0, i32 1, i32 0, i32 0 }, align 4
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@g1 = common local_unnamed_addr global %struct.test_t1 zeroinitializer, align 1
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@g2 = common local_unnamed_addr global %struct.test_t2 zeroinitializer, align 4
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; Function Attrs: nounwind
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define i32 @test() local_unnamed_addr #0 {
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; CHECK-LABEL: test:
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entry:
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* getelementptr inbounds (%struct.test_t1, %struct.test_t1* @g1, i64 0, i32 0), i8* getelementptr inbounds (%struct.test_t1, %struct.test_t1* @test.t1, i64 0, i32 0), i64 3, i1 false)
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 bitcast (%struct.test_t2* @g2 to i8*), i8* align 4 bitcast (%struct.test_t2* @test.t2 to i8*), i64 20, i1 false)
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; CHECK: r1 = g1
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; CHECK: r2 = 0
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; CHECK: *(u8 *)(r1 + 1) = r2
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; CHECK: r3 = 1
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; CHECK: *(u8 *)(r1 + 2) = r3
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; CHECK: r1 = g2
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; CHECK: *(u32 *)(r1 + 8) = r3
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ret i32 0
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}
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; CHECK: .section .rodata,"a",@progbits
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1) #1
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attributes #0 = { nounwind }
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attributes #1 = { argmemonly nounwind }
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