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Verify that alignment amounts are a power of 2

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-11-05 21:54:03 +00:00
parent 9fad0b9974
commit ac6e5c10db
1 changed files with 12 additions and 0 deletions
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12
lib/AsmParser/llvmAsmParser.y
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@ -2209,6 +2209,9 @@ MemoryInst : MALLOC Types {
delete $2; delete $2;
} }
| MALLOC Types ',' ALIGN EUINT64VAL { | MALLOC Types ',' ALIGN EUINT64VAL {
if ($5 & ($5-1))
ThrowException("Alignment amount '" + utostr($5) +
"' is not a power of 2!");
$$ = new MallocInst(*$2, 0, $5); $$ = new MallocInst(*$2, 0, $5);
delete $2; delete $2;
} }
@ -2217,6 +2220,9 @@ MemoryInst : MALLOC Types {
delete $2; delete $2;
} }
| MALLOC Types ',' UINT ValueRef ',' ALIGN EUINT64VAL { | MALLOC Types ',' UINT ValueRef ',' ALIGN EUINT64VAL {
if ($8 & ($8-1))
ThrowException("Alignment amount '" + utostr($8) +
"' is not a power of 2!");
$$ = new MallocInst(*$2, getVal($4, $5), $8); $$ = new MallocInst(*$2, getVal($4, $5), $8);
delete $2; delete $2;
} }
@ -2225,6 +2231,9 @@ MemoryInst : MALLOC Types {
delete $2; delete $2;
} }
| ALLOCA Types ',' ALIGN EUINT64VAL { | ALLOCA Types ',' ALIGN EUINT64VAL {
if ($5 & ($5-1))
ThrowException("Alignment amount '" + utostr($5) +
"' is not a power of 2!");
$$ = new AllocaInst(*$2, 0, $5); $$ = new AllocaInst(*$2, 0, $5);
delete $2; delete $2;
} }
@ -2233,6 +2242,9 @@ MemoryInst : MALLOC Types {
delete $2; delete $2;
} }
| ALLOCA Types ',' UINT ValueRef ',' ALIGN EUINT64VAL { | ALLOCA Types ',' UINT ValueRef ',' ALIGN EUINT64VAL {
if ($8 & ($8-1))
ThrowException("Alignment amount '" + utostr($8) +
"' is not a power of 2!");
$$ = new AllocaInst(*$2, getVal($4, $5), $8); $$ = new AllocaInst(*$2, getVal($4, $5), $8);
delete $2; delete $2;
} }