mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
17020de0e9
This reverts r176808, r176798, and r177914. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178583 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
3.0 KiB
LLVM
75 lines
3.0 KiB
LLVM
; RUN: llc -march=x86-64 -mcpu=core2 -fast-isel -enable-misched -misched=shuffle -misched-bottomup -verify-machineinstrs < %s
|
|
; RUN: llc -march=x86-64 -mcpu=core2 -fast-isel -enable-misched -misched=shuffle -misched-topdown -verify-machineinstrs < %s
|
|
; REQUIRES: asserts
|
|
;
|
|
; Test the LiveIntervals::handleMove() function.
|
|
;
|
|
; Moving the DIV32r instruction exercises the regunit update code because
|
|
; %EDX has a live range into the function and is used by the DIV32r.
|
|
;
|
|
; Here sinking a kill + dead def:
|
|
; 144B -> 180B: DIV32r %vreg4, %EAX<imp-def>, %EDX<imp-def,dead>, %EFLAGS<imp-def,dead>, %EAX<imp-use,kill>, %EDX<imp-use>
|
|
; %vreg4: [48r,144r:0) 0@48r
|
|
; --> [48r,180r:0) 0@48r
|
|
; DH: [0B,16r:0)[128r,144r:2)[144r,144d:1) 0@0B-phi 1@144r 2@128r
|
|
; --> [0B,16r:0)[128r,180r:2)[180r,180d:1) 0@0B-phi 1@180r 2@128r
|
|
; DL: [0B,16r:0)[128r,144r:2)[144r,144d:1) 0@0B-phi 1@144r 2@128r
|
|
; --> [0B,16r:0)[128r,180r:2)[180r,180d:1) 0@0B-phi 1@180r 2@128r
|
|
;
|
|
define i32 @f1(i32 %a, i32 %b, i32 %c) nounwind uwtable readnone ssp {
|
|
entry:
|
|
%y = add i32 %c, 1
|
|
%x = udiv i32 %b, %a
|
|
%add = add nsw i32 %y, %x
|
|
ret i32 %add
|
|
}
|
|
|
|
; Same as above, but moving a kill + live def:
|
|
; 144B -> 180B: DIV32r %vreg4, %EAX<imp-def,dead>, %EDX<imp-def>, %EFLAGS<imp-def,dead>, %EAX<imp-use,kill>, %EDX<imp-use>
|
|
; %vreg4: [48r,144r:0) 0@48r
|
|
; --> [48r,180r:0) 0@48r
|
|
; DH: [0B,16r:0)[128r,144r:2)[144r,184r:1) 0@0B-phi 1@144r 2@128r
|
|
; --> [0B,16r:0)[128r,180r:2)[180r,184r:1) 0@0B-phi 1@180r 2@128r
|
|
; DL: [0B,16r:0)[128r,144r:2)[144r,184r:1) 0@0B-phi 1@144r 2@128r
|
|
; --> [0B,16r:0)[128r,180r:2)[180r,184r:1) 0@0B-phi 1@180r 2@128r
|
|
;
|
|
define i32 @f2(i32 %a, i32 %b, i32 %c, i32 %d) nounwind uwtable readnone ssp {
|
|
entry:
|
|
%y = sub i32 %c, %d
|
|
%x = urem i32 %b, %a
|
|
%add = add nsw i32 %x, %y
|
|
ret i32 %add
|
|
}
|
|
|
|
; Moving a use below the existing kill (%vreg5):
|
|
; Moving a tied virtual register def (%vreg11):
|
|
;
|
|
; 96B -> 120B: %vreg11<def,tied1> = SUB32rr %vreg11<tied0>, %vreg5
|
|
; %vreg11: [80r,96r:1)[96r,144r:0) 0@96r 1@80r
|
|
; --> [80r,120r:1)[120r,144r:0) 0@120r 1@80r
|
|
; %vreg5: [16r,112r:0) 0@16r
|
|
; --> [16r,120r:0) 0@16r
|
|
;
|
|
define i32 @f3(i32 %a, i32 %b) nounwind uwtable readnone ssp {
|
|
entry:
|
|
%y = sub i32 %a, %b
|
|
%x = add i32 %a, %b
|
|
%r = mul i32 %x, %y
|
|
ret i32 %r
|
|
}
|
|
|
|
; Move EFLAGS dead def across another def:
|
|
; handleMove 208B -> 36B: %EDX<def> = MOV32r0 %EFLAGS<imp-def,dead>
|
|
; EFLAGS: [20r,20d:4)[160r,160d:3)[208r,208d:0)[224r,224d:1)[272r,272d:2)[304r,304d:5) 0@208r 1@224r 2@272r 3@160r 4@20r 5@304r
|
|
; --> [20r,20d:4)[36r,36d:0)[160r,160d:3)[224r,224d:1)[272r,272d:2)[304r,304d:5) 0@36r 1@224r 2@272r 3@160r 4@20r 5@304r
|
|
;
|
|
define i32 @f4(i32 %a, i32 %b, i32 %c, i32 %d) nounwind uwtable readnone ssp {
|
|
entry:
|
|
%x = sub i32 %a, %b
|
|
%y = sub i32 %b, %c
|
|
%z = sub i32 %c, %d
|
|
%r1 = udiv i32 %x, %y
|
|
%r2 = mul i32 %z, %r1
|
|
ret i32 %r2
|
|
}
|