[LLVMdev] what's meaning of the last field of an LLVM intrinsic instrucation

[Robinson, Paul]

The #2 refers to a set of attributes.  Attribute sets are given unique numbers.  You should see them listed in the IR, somewhere after the functions.
I believe attributes are attached after the instruction is created.  They generally apply to functions (and calls), and not to most instructions.
--paulr

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of zhi chen
Sent: Monday, April 20, 2015 10:57 PM
To: LLVM Dev
Subject: [LLVMdev] what's meaning of the last field of an LLVM intrinsic instrucation

The intrinsic instructions always have an number in the end, what's meaning of it?

For example,   %2 = call <2 x double> @llvm.x86.sse2.sqrt.pd(<2 x double> %1) #2

What does this #2 mean? Can I ignore it when I create the instruction? Thanks.

Best,
Zhi
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