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| author | Renato Golin <renato.golin@linaro.org> | 2014-10-08 12:26:22 +0000 |
|---|---|---|
| committer | Renato Golin <renato.golin@linaro.org> | 2014-10-08 12:26:22 +0000 |
| commit | 0595a26c2556c02208af606cf4a3c6d3d8cbf216 (patch) | |
| tree | ec1a3e2b16312c29d0d0d77a99d7d066af0f473c | |
| parent | bab5ace6aa5285ea554c46ff3af8bc5d179abf8c (diff) | |
| download | bcm5719-llvm-0595a26c2556c02208af606cf4a3c6d3d8cbf216.tar.gz bcm5719-llvm-0595a26c2556c02208af606cf4a3c6d3d8cbf216.zip | |
Emit unaligned access build attribute for ARM
Patch by Charlie Turner.
llvm-svn: 219301
| -rw-r--r-- | llvm/lib/Target/ARM/ARMAsmPrinter.cpp | 7 | ||||
| -rw-r--r-- | llvm/test/CodeGen/ARM/build-attributes.ll | 28 |
2 files changed, 35 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp index 5ae8b2f11ae..f8e32634c74 100644 --- a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp +++ b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp @@ -706,6 +706,13 @@ void ARMAsmPrinter::emitAttributes() { ATS.emitAttribute(ARMBuildAttrs::ABI_FP_number_model, ARMBuildAttrs::AllowIEE754); + if (Subtarget->allowsUnalignedMem()) + ATS.emitAttribute(ARMBuildAttrs::CPU_unaligned_access, + ARMBuildAttrs::Allowed); + else + ATS.emitAttribute(ARMBuildAttrs::CPU_unaligned_access, + ARMBuildAttrs::Not_Allowed); + // FIXME: add more flags to ARMBuildAttributes.h // 8-bytes alignment stuff. ATS.emitAttribute(ARMBuildAttrs::ABI_align_needed, 1); diff --git a/llvm/test/CodeGen/ARM/build-attributes.ll b/llvm/test/CodeGen/ARM/build-attributes.ll index 4243fa4efbd..e72b269c0e0 100644 --- a/llvm/test/CodeGen/ARM/build-attributes.ll +++ b/llvm/test/CodeGen/ARM/build-attributes.ll @@ -44,6 +44,30 @@ ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi | FileCheck %s --check-prefix=PCS-R9-USE ; RUN: llc < %s -mtriple=arm-none-linux-gnueabi -arm-reserve-r9 | FileCheck %s --check-prefix=PCS-R9-RESERVE +; ARMv8a (AArch32) +; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=armv8-none-linux-gnueabi -mcpu=cortex-a57 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv7a +; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -mcpu=cortex-a7 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv7r +; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=armv7r-none-linux-gnueabi -mcpu=cortex-r5 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv7m +; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=thumbv7m-none-linux-gnueabi -mcpu=cortex-m3 -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv6 +; RUN: llc < %s -mtriple=armv6-none-netbsd-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv6m +; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -arm-no-strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN +; RUN: llc < %s -mtriple=thumb-none-linux-gnueabi -arm-strict-align -mcpu=cortex-m0 | FileCheck %s --check-prefix=STRICT-ALIGN +; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -arm-no-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; RUN: llc < %s -mtriple=thumbv6m-none-linux-gnueabi -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN +; ARMv5 +; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -arm-no-strict-align | FileCheck %s --check-prefix=NO-STRICT-ALIGN +; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi -mcpu=arm1022e -arm-strict-align | FileCheck %s --check-prefix=STRICT-ALIGN + ; XSCALE: .eabi_attribute 6, 5 ; XSCALE: .eabi_attribute 8, 1 ; XSCALE: .eabi_attribute 9, 1 @@ -137,6 +161,10 @@ ; V8-FPARMv8-NEON-CRYPTO: .fpu crypto-neon-fp-armv8 ; V8-FPARMv8-NEON-CRYPTO: .eabi_attribute 12, 3 +; Tag_CPU_unaligned_access +; NO-STRICT-ALIGN: .eabi_attribute 34, 1 +; STRICT-ALIGN: .eabi_attribute 34, 0 + ; Tag_CPU_arch 'ARMv7' ; CORTEX-A7-CHECK: .eabi_attribute 6, 10 ; CORTEX-A7-NOFPU: .eabi_attribute 6, 10 |
