63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* PR middle-end/95136 - missing -Wuninitialized on an array access with
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a variable offset
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{ dg-do compile }
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{ dg-options "-O -Wall" } */
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#define NOIPA __attribute__ ((noipa))
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NOIPA int a1_addr_varidx_plus_cst (int i)
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{
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int a[4]; // { dg-message "'a' declared here" }
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int *p = &a[i + 1];
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return *p; // { dg-warning "'a|a\\\[<unknown>]' is used uninitialized" }
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}
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NOIPA int a1_plus_addr_varidx_cst (int i)
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{
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int a[4]; // { dg-message "'a' declared here" }
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int *p = &a[i] + 1;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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NOIPA int a1_plus_addr_cstidx_var (int i)
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{
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int a[4]; // { dg-message "'a' declared here" }
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int *p = &a[1] + i;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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NOIPA int a1_plus_addr_varidx_var (int i, int j)
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{
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int a[4]; // { dg-message "'a' declared here" }
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int *p = &a[i] + j;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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NOIPA int a2_addr_varidx_plus_cst (int i, int j)
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{
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int a[4][4]; // { dg-message "'a' declared here" }
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int *p = &a[i + 1][j + 1];
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return *p; // { dg-warning "'a|a\\\[<unknown>]\\\[<unknown>]' is used uninitialized" }
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}
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NOIPA int a2_plus_addr_varidx_cst (int i, int j)
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{
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int a[4][4]; // { dg-message "'a' declared here" }
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int *p = &a[i][j] + 1;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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NOIPA int a2_plus_addr_cstidx_var (int i)
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{
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int a[4][4]; // { dg-message "'a' declared here" }
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int *p = &a[1][1] + i;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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NOIPA int a2_plus_addr_varidx_var (int i, int j, int k)
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{
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int a[4][4]; // { dg-message "'a' declared here" }
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int *p = &a[i][j] + k;
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return *p; // { dg-warning "'a' is used uninitialized" }
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}
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