Per discussion in rdar://
13127907, we should emit a hard error only if
people write code where the requested alignment is larger than achievable
and assumes the low bits are zeros. A warning should be good enough when
we are not sure if the source code assumes the low bits are zeros.
rdar://
13127907
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174336
91177308-0d34-0410-b5e6-
96231b3b80d8
if (!ShouldClamp || PrefAlign <= StackAlign)
return PrefAlign;
if (Alloca && MinAlign > StackAlign)
- Alloca->getParent()->getContext().emitError(Alloca,
- "Requested Minimal Alignment exceeds the Stack Alignment!");
+ Alloca->getParent()->getContext().emitWarning(Alloca,
+ "Requested alignment exceeds the stack alignment!");
else
assert(MinAlign <= StackAlign &&
- "Requested Minimal Alignment exceeds the Stack Alignment!");
+ "Requested alignment exceeds the stack alignment!");
return StackAlign;
}
; If alignment for alloc is smaller than or equal to stack alignment, but the
; preferred type alignment is bigger, the alignment will be clamped.
; If alignment for alloca is bigger than stack alignment, the compiler
-; will emit an error.
+; will emit a warning.
define void @test(<16 x float>* noalias sret %agg.result) nounwind ssp {
entry:
-; CHECK: Requested Minimal Alignment exceeds the Stack Alignment!
+; CHECK: warning: Requested alignment exceeds the stack alignment!
%retval = alloca <16 x float>, align 16
%0 = load <16 x float>* @T3_retval, align 16
store <16 x float> %0, <16 x float>* %retval