[llvm-dev] union return type (original) (raw)
Julien Schmitt via llvm-dev llvm-dev at lists.llvm.org
Wed Apr 19 01:38:18 PDT 2017
- Previous message: [llvm-dev] __builtin_expect hint ignored
- Next message: [llvm-dev] union return type
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Dear LLVMers,
I need your help to understand my problem:
I'm compiling a code for 2 different targets (x86_64 and sparc). In this code, I define a union which is basically a int32 and a function which returns this union. The compilation of this code produces 2 different IRs :
for x86, the return type is int32,
for sparc, the return type is a struct (first argument of the function with attribute sret).
I guess an optimization pass is called to simplify the return type in first case but i have no idea which one ?
Does anybody have an explanation ?
Thanks!
Julien
- Previous message: [llvm-dev] __builtin_expect hint ignored
- Next message: [llvm-dev] union return type
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]