llvm-6502/test/CodeGen/Mips/frame-address.ll at 9d30e7208e6b2bc3fa48305e3ae371188f643425 - llvm-6502 - Applefritter: Git

6502/llvm-6502

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Akira Hatanaka 68fe665b9a [mips] Use "or $r0, $r1, $zero" instead of "addu $r0, $zero, $r1" to copy

physical register $r1 to $r0.

GNU disassembler recognizes an "or" instruction as a "move", and this change
makes the disassembled code easier to read.

Original patch by Reed Kotler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170655 91177308-0d34-0410-b5e6-96231b3b80d8

2012-12-20 04:06:06 +00:00

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LLVM

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 ; RUN: llc -march=mipsel < %s | FileCheck %s
 declare i8* @llvm.frameaddress(i32) nounwind readnone
 define i8* @f() nounwind {
 entry:
   %0 = call i8* @llvm.frameaddress(i32 0)
   ret i8* %0
 ; CHECK:   addu    $fp, $sp, $zero
 ; CHECK:   or      $2, $fp, $zero
 }