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llvm/test/CodeGen/ARM/krait-cpu-div-attribute.ll

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Use ".arch_extension" ARM directive to support hwdiv on krait In case of "krait" CPU, asm printer doesn't emit any ".cpu" so the features bits are not computed. This patch lets the asm printer emit ".cpu cortex-a9" directive for krait and the hwdiv feature is enabled through ".arch_extension". In short, krait is treated as "cortex-a9" with hwdiv. We can not emit ".krait" as CPU since it is not supported bu GNU GAS yet git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230651 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 18:08:41 +00:00
; 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
Pass correct -mtriple for krait-cpu-div-attribute.ll Not passing mtriple for one of the tests caused a regression failure on MIPS buildbot. The issue was introduced by r230651. Differential Revision: http://reviews.llvm.org/D7938 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230756 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 14:46:41 +00:00
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait -mattr=-hwdiv,-hwdiv-arm | FileCheck %s --check-prefix=NODIV_KRAIT
Use ".arch_extension" ARM directive to support hwdiv on krait In case of "krait" CPU, asm printer doesn't emit any ".cpu" so the features bits are not computed. This patch lets the asm printer emit ".cpu cortex-a9" directive for krait and the hwdiv feature is enabled through ".arch_extension". In short, krait is treated as "cortex-a9" with hwdiv. We can not emit ".krait" as CPU since it is not supported bu GNU GAS yet git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230651 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 18:08:41 +00:00
; 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
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%0 = load volatile i32, i32* %b, align 4
%1 = load volatile i32, i32* %c, align 4
Use ".arch_extension" ARM directive to support hwdiv on krait In case of "krait" CPU, asm printer doesn't emit any ".cpu" so the features bits are not computed. This patch lets the asm printer emit ".cpu cortex-a9" directive for krait and the hwdiv feature is enabled through ".arch_extension". In short, krait is treated as "cortex-a9" with hwdiv. We can not emit ".krait" as CPU since it is not supported bu GNU GAS yet git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230651 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 18:08:41 +00:00
%div = sdiv i32 %0, %1
store volatile i32 %div, i32* %a, align 4
ret i32 0
}
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