llvm-mirror/test/Verifier/inalloca-vararg.ll

; RUN: not llvm-as %s -o /dev/null 2>&1 | FileCheck %s

declare void @h(i32, ...)
define void @i() {
  %args = alloca inalloca i32
  call void (i32, ...)* @h(i32 1, i32* inalloca %args, i32 3)
; CHECK: inalloca isn't on the last argument!
  ret void
}
Change inalloca rules to make it only apply to the last parameter This makes things a lot easier, because we can now talk about the "argument allocation", which allocates all the memory for the call in one shot. The only functional change is to the verifier for a feature that hasn't shipped yet. llvm-svn: 199434 2014-01-16 23:59:24 +01:00			`; RUN: not llvm-as %s -o /dev/null 2>&1 \| FileCheck %s`

			`declare void @h(i32, ...)`
			`define void @i() {`
IR: Change inalloca's grammar a bit The grammar for LLVM IR is not well specified in any document but seems to obey the following rules: - Attributes which have parenthesized arguments are never preceded by commas. This form of attribute is the only one which ever has optional arguments. However, not all of these attributes support optional arguments: 'thread_local' supports an optional argument but 'addrspace' does not. Interestingly, 'addrspace' is documented as being a "qualifier". What constitutes a qualifier? I cannot find a definition. - Some attributes use a space between the keyword and the value. Examples of this form are 'align' and 'section'. These are always preceded by a comma. - Otherwise, the attribute has no argument. These attributes do not have a preceding comma. Sometimes an attribute goes before the instruction, between the instruction and it's type, or after it's type. 'atomicrmw' has 'volatile' between the instruction and the type while 'call' has 'tail' preceding the instruction. With all this in mind, it seems most consistent for 'inalloca' on an 'inalloca' instruction to occur before between the instruction and the type. Unlike the current formulation, there would be no preceding comma. The combination 'alloca inalloca' doesn't look particularly appetizing, perhaps a better spelling of 'inalloca' is down the road. llvm-svn: 203376 2014-03-09 07:41:58 +01:00			`%args = alloca inalloca i32`
Change inalloca rules to make it only apply to the last parameter This makes things a lot easier, because we can now talk about the "argument allocation", which allocates all the memory for the call in one shot. The only functional change is to the verifier for a feature that hasn't shipped yet. llvm-svn: 199434 2014-01-16 23:59:24 +01:00			`call void (i32, ...)* @h(i32 1, i32* inalloca %args, i32 3)`
			`; CHECK: inalloca isn't on the last argument!`
			`ret void`
			`}`