6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-04 07:29:20 +00:00
Code Issues Projects Releases Wiki Activity
0b9675d631
llvm-6502/test/CodeGen/Mips/return_address.ll

24 lines
457 B
LLVM
Raw Normal View History

Lower RETURNADDR node in Mips backend. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11 00:53:32 +00:00
; RUN: llc -march=mipsel < %s | FileCheck %s
define i8* @f1() nounwind {
entry:
%0 = call i8* @llvm.returnaddress(i32 0)
ret i8* %0
[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
; CHECK: or $2, $ra, $zero
Lower RETURNADDR node in Mips backend. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11 00:53:32 +00:00
}
define i8* @f2() nounwind {
entry:
call void @g()
%0 = call i8* @llvm.returnaddress(i32 0)
ret i8* %0
[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
; CHECK: or $[[R0:[0-9]+]], $ra, $zero
Lower RETURNADDR node in Mips backend. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11 00:53:32 +00:00
; CHECK: jal
[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
; CHECK: or $2, $[[R0]], $zero
Lower RETURNADDR node in Mips backend. Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11 00:53:32 +00:00
}
declare i8* @llvm.returnaddress(i32) nounwind readnone
declare void @g()
Reference in New Issue Copy Permalink