37 lines
1.7 KiB
LLVM
37 lines
1.7 KiB
LLVM
|
; Tests the genration of ".arch_extension" attribute for hardware
|
||
|
|
; division on krait CPU. For now, krait is recognized as "cortex-a9" + hwdiv
|
||
|
|
; Also, tests for the hwdiv instruction on krait CPU
|
||
|
|
|
||
|
|
; check for arch_extension/cpu directive
|
||
|
|
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait | FileCheck %s --check-prefix=DIV_EXTENSION
|
||
|
|
; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=krait | FileCheck %s --check-prefix=DIV_EXTENSION
|
||
|
|
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 | FileCheck %s --check-prefix=NODIV_KRAIT
|
||
|
|
; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=cortex-a9 | FileCheck %s --check-prefix=NODIV_KRAIT
|
||
|
|
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait -mattr=-hwdiv,-hwdiv-arm | FileCheck %s --check-prefix=NODIV_KRAIT
|
||
|
|
|
||
|
|
; check if correct instruction is emitted by integrated assembler
|
||
|
|
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait -filetype=obj | llvm-objdump --mcpu=krait --triple=armv7-linux-gnueabi -d - | FileCheck %s --check-prefix=HWDIV
|
||
|
|
; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=krait -filetype=obj | llvm-objdump --mcpu=krait --triple=thumbv7-linux-gnueabi -d - | FileCheck %s --check-prefix=HWDIV
|
||
|
|
|
||
|
|
; arch_extension attribute
|
||
|
|
; DIV_EXTENSION: .cpu cortex-a9
|
||
|
|
; DIV_EXTENSION: .arch_extension idiv
|
||
|
|
; NODIV_KRAIT-NOT: .arch_extension idiv
|
||
|
|
; HWDIV: sdiv
|
||
|
|
|
||
|
|
define i32 @main() #0 {
|
||
|
|
entry:
|
||
|
|
%retval = alloca i32, align 4
|
||
|
|
%a = alloca i32, align 4
|
||
|
|
%b = alloca i32, align 4
|
||
|
|
%c = alloca i32, align 4
|
||
|
|
store i32 0, i32* %retval
|
||
|
|
store volatile i32 100, i32* %b, align 4
|
||
|
|
store volatile i32 32, i32* %c, align 4
|
||
|
|
%0 = load volatile i32, i32* %b, align 4
|
||
|
|
%1 = load volatile i32, i32* %c, align 4
|
||
|
|
%div = sdiv i32 %0, %1
|
||
|
|
store volatile i32 %div, i32* %a, align 4
|
||
|
|
ret i32 0
|
||
|
|
}
|