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; 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 -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* %b, align 4
%1 = load volatile i32* %c, align 4
%div = sdiv i32 %0, %1
store volatile i32 %div, i32* %a, align 4
ret i32 0
}
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