maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[ARM] Fix NEON wrongly being enabled with soft-float when targeting armv8/Cortex-A53/A57. 

This was caused by r200708 which enabled the crypto feature for these cores.

llvm-svn: 201223
This commit is contained in:
Amara Emerson 2014-02-12 10:22:35 +00:00
parent 53f9df4c93
commit ecbe18e01d
2 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
clang/lib/Driver/Tools.cpp
View File

@ -718,8 +718,11 @@ static void getARMTargetFeatures(const Driver &D, const llvm::Triple &Triple,
// Setting -msoft-float effectively disables NEON because of the GCC
// implementation, although the same isn't true of VFP or VFP3.
if (FloatABI == "soft")
if (FloatABI == "soft") {
Features.push_back("-neon");
// Also need to explicitly disable features which imply NEON.
Features.push_back("-crypto");
}
// En/disable crc
if (Arg *A = Args.getLastArg(options::OPT_mcrc,

7
clang/test/Driver/arm-mfpu.c
View File

@ -63,11 +63,16 @@
// RUN: | FileCheck --check-prefix=CHECK-SOFT-FLOAT %s
// CHECK-SOFT-FLOAT: "-target-feature" "-neon"
// RUN: %clang -target armv8 %s -### 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-ARMV8-DEFAULT-SOFT-FP %s
// CHECK-ARMV8-DEFAULT-SOFT-FP: "-target-feature" "-neon"
// CHECK-ARMV8-DEFAULT-SOFT-FP: "-target-feature" "-crypto"
// RUN: %clang -target armv8 -mfpu=fp-armv8 %s -### 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-ARMV8-SOFT-FLOAT %s
// CHECK-ARMV8-SOFT-FLOAT: "-target-feature" "+fp-armv8"
// CHECK-ARMV8-SOFT-FLOAT: "-target-feature" "-crypto"
// CHECK-ARMV8-SOFT-FLOAT: "-target-feature" "-neon"
// CHECK-ARMV8-SOFT-FLOAT: "-target-feature" "-crypto"
// RUN: %clang -target armv8-linux-gnueabihf -mfpu=fp-armv8 %s -### 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-FP-ARMV8 %s