forked from OSchip/llvm-project
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
|
; RUN: llc %s -o - -mtriple=armv8-unknown -mattr=-fuse-literals,+use-misched | FileCheck %s --check-prefix=CHECK --check-prefix=CHECKDONT
|
||
|
|
; RUN: llc %s -o - -mtriple=armv8-unknown -mattr=+fuse-literals,+use-misched | FileCheck %s --check-prefix=CHECK --check-prefix=CHECKFUSE
|
||
|
|
|
||
|
|
@g = common global i32* zeroinitializer
|
||
|
|
|
||
|
|
define i32* @litp(i32 %a, i32 %b) {
|
||
|
|
entry:
|
||
|
|
%add = add nsw i32 %b, %a
|
||
|
|
%ptr = getelementptr i32, i32* bitcast (i32* (i32, i32)* @litp to i32*), i32 %add
|
||
|
|
%res = getelementptr i32, i32* bitcast (i32** @g to i32*), i32 %add
|
||
|
|
store i32* %ptr, i32** @g, align 4
|
||
|
|
ret i32* %res
|
||
|
|
|
||
|
|
; CHECK-LABEL: litp:
|
||
|
|
; CHECK: movw [[R:r[0-9]+]], :lower16:litp
|
||
|
|
; CHECKDONT-NEXT: movw [[S:r[0-9]+]], :lower16:g
|
||
|
|
; CHECKFUSE-NEXT: movt [[R]], :upper16:litp
|
||
|
|
; CHECKFUSE-NEXT: movw [[S:r[0-9]+]], :lower16:g
|
||
|
|
; CHECKFUSE-NEXT: movt [[S]], :upper16:g
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @liti(i32 %a, i32 %b) {
|
||
|
|
entry:
|
||
|
|
%adda = add i32 %a, -262095121
|
||
|
|
%add1 = add i32 %adda, %b
|
||
|
|
%addb = add i32 %b, 121110837
|
||
|
|
%add2 = add i32 %addb, %a
|
||
|
|
store i32 %add1, i32* bitcast (i32** @g to i32*), align 4
|
||
|
|
ret i32 %add2
|
||
|
|
|
||
|
|
; CHECK-LABEL: liti:
|
||
|
|
; CHECK: movw [[R:r[0-9]+]], #309
|
||
|
|
; CHECKDONT-NEXT: add {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}
|
||
|
|
; CHECKFUSE-NEXT: movt [[R]], #1848
|
||
|
|
; CHECKFUSE: movw [[S:r[0-9]+]], :lower16:g
|
||
|
|
; CHECKFUSE-NEXT: movt [[S]], :upper16:g
|
||
|
|
; CHECKFUSE-NEXT: movw [[T:r[0-9]+]], #48879
|
||
|
|
; CHECKFUSE-NEXT: movt [[T]], #61536
|
||
|
|
}
|