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riscv-gcc-1
Commit 7e9d002a by Richard Kenner
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(parser_build_binary_op): Warn about x^y==z, etc. 

From-SVN: r10473
parent c043666f
Showing with 9 additions and 0 deletions
gcc/c-typeck.c
......@@ -1823,6 +1823,9 @@ parser_build_binary_op (code, arg1, arg2)
|| code2 == BIT_AND_EXPR || code2 == BIT_XOR_EXPR
|| code2 == PLUS_EXPR || code2 == MINUS_EXPR)
warning ("suggest parentheses around arithmetic in operand of |");
/* Check cases like x|y==z */
if (TREE_CODE_CLASS (code1) == '<' || TREE_CODE_CLASS (code2) == '<')
warning ("suggest parentheses around comparison in operand of |");
}
if (code == BIT_XOR_EXPR)
......@@ -1832,6 +1835,9 @@ parser_build_binary_op (code, arg1, arg2)
|| code2 == BIT_AND_EXPR
|| code2 == PLUS_EXPR || code2 == MINUS_EXPR)
warning ("suggest parentheses around arithmetic in operand of ^");
/* Check cases like x^y==z */
if (TREE_CODE_CLASS (code1) == '<' || TREE_CODE_CLASS (code2) == '<')
warning ("suggest parentheses around comparison in operand of ^");
}
if (code == BIT_AND_EXPR)
......@@ -1839,6 +1845,9 @@ parser_build_binary_op (code, arg1, arg2)
if (code1 == PLUS_EXPR || code1 == MINUS_EXPR
|| code2 == PLUS_EXPR || code2 == MINUS_EXPR)
warning ("suggest parentheses around + or - in operand of &");
/* Check cases like x&y==z */
if (TREE_CODE_CLASS (code1) == '<' || TREE_CODE_CLASS (code2) == '<')
warning ("suggest parentheses around comparison in operand of &");
}
}
......
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