From 39a09d2b7cf3a547df4a92c91280d5dc3b02318f Mon Sep 17 00:00:00 2001 From: David Majnemer Date: Sun, 9 Mar 2014 06:41:58 +0000 Subject: 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203376 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Assembler/inalloca.ll | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'test/Assembler') diff --git a/test/Assembler/inalloca.ll b/test/Assembler/inalloca.ll index 94fac26265..ff7a87e0a3 100644 --- a/test/Assembler/inalloca.ll +++ b/test/Assembler/inalloca.ll @@ -2,11 +2,11 @@ define void @a() { entry: - %0 = alloca i32, inalloca - %1 = alloca [2 x i32], inalloca - %2 = alloca i32, inalloca, i32 2 - %3 = alloca i32, inalloca, i32 2, align 16 - %4 = alloca i32, inalloca, i32 2, align 16, !foo !0 + %0 = alloca inalloca i32 + %1 = alloca inalloca [2 x i32] + %2 = alloca inalloca i32, i32 2 + %3 = alloca inalloca i32, i32 2, align 16 + %4 = alloca inalloca i32, i32 2, align 16, !foo !0 %5 = alloca i32, i32 2, align 16, !foo !0 %6 = alloca i32, i32 2, align 16 ret void -- cgit v1.2.3