llvm-6502/test/CodeGen/ARM/sub.ll
Jim Grosbach 589130fac1 Simplify printing of ARM shifted immediates.
Print shifted immediate values directly rather than as a payload+shifter
value pair. This makes for more readable output assembly code, simplifies
the instruction printer, and is consistent with how Thumb immediates are
 displayed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134902 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11 16:48:36 +00:00

39 lines
713 B
LLVM

; RUN: llc -march=arm < %s | FileCheck %s
; 171 = 0x000000ab
define i64 @f1(i64 %a) {
; CHECK: f1
; CHECK: subs r0, r0, #171
; CHECK: sbc r1, r1, #0
%tmp = sub i64 %a, 171
ret i64 %tmp
}
; 66846720 = 0x03fc0000
define i64 @f2(i64 %a) {
; CHECK: f2
; CHECK: subs r0, r0, #66846720
; CHECK: sbc r1, r1, #0
%tmp = sub i64 %a, 66846720
ret i64 %tmp
}
; 734439407618 = 0x000000ab00000002
define i64 @f3(i64 %a) {
; CHECK: f3
; CHECK: subs r0, r0, #2
; CHECK: sbc r1, r1, #171
%tmp = sub i64 %a, 734439407618
ret i64 %tmp
}
define i32 @f4(i32 %x) {
entry:
; CHECK: f4
; CHECK: rsbs
%sub = sub i32 1, %x
%cmp = icmp ugt i32 %sub, 0
%sel = select i1 %cmp, i32 1, i32 %sub
ret i32 %sel
}