6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-11 00:39:36 +00:00
Code Issues Projects Releases Wiki Activity

these registers don't belong to any register classes, so don't mark them

Browse Source 
as callee save.  They can never be generated by the compiler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23551 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-09-30 06:42:24 +00:00
parent 88b7e6e304
commit 0a37960d32
1 changed files with 21 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
lib/Target/IA64/IA64.td
View File

@ -38,7 +38,10 @@ def IA64 : Target {
//'preserved' GRs:
[r4, r5, r6, r7,
[
// We never generate references to these regs, so we don't need to declare
// that they are saved. In fact, we could just remove them entirely.
//r4, r5, r6, r7,
//'special' GRs:
@ -67,19 +70,26 @@ def IA64 : Target {
*/
//'preserved' FP regs:
F2,F3,F4,F5,
F16,F17,F18,F19,F20,F21,F22,F23,
F24,F25,F26,F27,F28,F29,F30,F31,
/* We never generate references to these regs, so we don't need to declare
* that they are saved. In fact, we could just remove them entirely.
* F2,F3,F4, F5,
* F16,F17,F18,F19,F20,F21,F22,F23,
* F24,F25,F26,F27,F28,F29,F30,F31,
*/
//'preserved' predicate regs:
p1, p2, p3, p4, p5,
p16, p17, p18, p19, p20, p21, p22, p23,
p24, p25, p26, p27, p28, p29, p30, p31,
p32, p33, p34, p35, p36, p37, p38, p39,
p40, p41, p42, p43, p44, p45, p46, p47,
p48, p49, p50, p51, p52, p53, p54, p55,
p56, p57, p58, p59, p60, p61, p62, p63];
/* We never generate references to these regs, so we don't need to declare
that they are saved. In fact, we could just remove them entirely.
p1, p2, p3, p4, p5,
p16, p17, p18, p19, p20, p21, p22, p23,
p24, p25, p26, p27, p28, p29, p30, p31,
p32, p33, p34, p35, p36, p37, p38, p39,
p40, p41, p42, p43, p44, p45, p46, p47,
p48, p49, p50, p51, p52, p53, p54, p55,
p56, p57, p58, p59, p60, p61, p62, p63
*/
];
// We don't go anywhere near the LP32 variant of IA64 as
// sometimes seen in (for example) HP-UX