mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-15 20:06:46 +00:00
8981bce73f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134068 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
1.5 KiB
LLVM
69 lines
1.5 KiB
LLVM
; RUN: llc -march=thumb -mattr=+thumb2 < %s | FileCheck %s
|
|
|
|
define i64 @f1(i64 %a, i64 %b) {
|
|
; CHECK: f1
|
|
; CHECK: subs r0, r0, r2
|
|
%tmp = sub i64 %a, %b
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 734439407618 = 0x000000ab00000002
|
|
define i64 @f2(i64 %a) {
|
|
; CHECK: f2
|
|
; CHECK: subs r0, #2
|
|
; CHECK: sbc r1, r1, #171
|
|
%tmp = sub i64 %a, 734439407618
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 5066626890203138 = 0x0012001200000002
|
|
define i64 @f3(i64 %a) {
|
|
; CHECK: f3
|
|
; CHECK: subs r0, #2
|
|
; CHECK: sbc r1, r1, #1179666
|
|
%tmp = sub i64 %a, 5066626890203138
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 3747052064576897026 = 0x3400340000000002
|
|
define i64 @f4(i64 %a) {
|
|
; CHECK: f4
|
|
; CHECK: subs r0, #2
|
|
; CHECK: sbc r1, r1, #872428544
|
|
%tmp = sub i64 %a, 3747052064576897026
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 6221254862626095106 = 0x5656565600000002
|
|
define i64 @f5(i64 %a) {
|
|
; CHECK: f5
|
|
; CHECK: subs r0, #2
|
|
; CHECK: adc r1, r1, #-1448498775
|
|
%tmp = sub i64 %a, 6221254862626095106
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; 287104476244869122 = 0x03fc000000000002
|
|
define i64 @f6(i64 %a) {
|
|
; CHECK: f6
|
|
; CHECK: subs r0, #2
|
|
; CHECK: sbc r1, r1, #66846720
|
|
%tmp = sub i64 %a, 287104476244869122
|
|
ret i64 %tmp
|
|
}
|
|
|
|
; Example from numerics code that manually computes wider-than-64 values.
|
|
;
|
|
; CHECK: livecarry:
|
|
; CHECK: adds
|
|
; CHECK: adc
|
|
define i64 @livecarry(i64 %carry, i32 %digit) nounwind {
|
|
%ch = lshr i64 %carry, 32
|
|
%cl = and i64 %carry, 4294967295
|
|
%truncdigit = zext i32 %digit to i64
|
|
%prod = add i64 %cl, %truncdigit
|
|
%ph = lshr i64 %prod, 32
|
|
%carryresult = add i64 %ch, %ph
|
|
ret i64 %carryresult
|
|
}
|