| 1 | // RUN: %clang_cc1 -emit-llvm -w -o - %s | FileCheck %s |
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| 2 | |
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| 3 | // CHECK-DAG: @r = common {{(dso_local )?}}global [1 x {{.*}}] zeroinitializer |
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| 4 | |
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| 5 | int r[]; |
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| 6 | int (*a)[] = &r; |
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| 7 | |
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| 8 | struct s0; |
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| 9 | struct s0 x; |
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| 10 | // CHECK-DAG: @x = common {{(dso_local )?}}global %struct.s0 zeroinitializer |
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| 11 | |
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| 12 | struct s0 y; |
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| 13 | // CHECK-DAG: @y = common {{(dso_local )?}}global %struct.s0 zeroinitializer |
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| 14 | struct s0 *f0() { |
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| 15 | return &y; |
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| 16 | } |
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| 17 | |
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| 18 | struct s0 { |
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| 19 | int x; |
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| 20 | }; |
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| 21 | |
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| 22 | // CHECK-DAG: @b = common {{(dso_local )?}}global [1 x {{.*}}] zeroinitializer |
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| 23 | int b[]; |
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| 24 | int *f1() { |
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| 25 | return b; |
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| 26 | } |
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| 27 | |
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| 28 | // Check that the most recent tentative definition wins. |
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| 29 | // CHECK-DAG: @c = common {{(dso_local )?}}global [4 x {{.*}}] zeroinitializer |
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| 30 | int c[]; |
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| 31 | int c[4]; |
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| 32 | |
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| 33 | // Check that we emit static tentative definitions |
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| 34 | // CHECK-DAG: @c5 = internal global [1 x {{.*}}] zeroinitializer |
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| 35 | static int c5[]; |
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| 36 | static int func() { return c5[0]; } |
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| 37 | int callfunc() { return func(); } |
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| 38 | |
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| 39 | |
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