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[AArch64] Enable A53 erratum workaround (835769) by default for Android targets 

llvm-svn: 219933
This commit is contained in:
Bradley Smith 2014-10-16 16:35:14 +00:00
parent 2eff71d76e
commit 04ee8aa1fc
3 changed files with 16 additions and 0 deletions
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4
clang/lib/Driver/Tools.cpp
View File

@ -920,6 +920,10 @@ void Clang::AddAArch64TargetArgs(const ArgList &Args,
CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
else
CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0");
} else if (Triple.getEnvironment() == llvm::Triple::Android) {
// Enabled A53 errata (835769) workaround by default on android
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
}
// Setting -mno-global-merge disables the codegen global merge pass. Setting

8
clang/test/Driver/aarch64-fix-cortex-a53-835769-cg.c → clang/test/CodeGen/aarch64-fix-cortex-a53-835769.c
View File

@ -1,4 +1,5 @@
// REQUIRES: aarch64-registered-target
// RUN: %clang -O3 -target aarch64-linux-eabi %s -S -o- \
// RUN: | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
// RUN: %clang -O3 -target aarch64-linux-eabi -mfix-cortex-a53-835769 %s -S -o- 2>&1 \
@ -6,6 +7,13 @@
// RUN: %clang -O3 -target aarch64-linux-eabi -mno-fix-cortex-a53-835769 %s -S -o- 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
// RUN: %clang -O3 -target aarch64-android-eabi %s -S -o- \
// RUN: | FileCheck --check-prefix=CHECK-YES --check-prefix=CHECK %s
// RUN: %clang -O3 -target aarch64-android-eabi -mfix-cortex-a53-835769 %s -S -o- \
// RUN: | FileCheck --check-prefix=CHECK-YES --check-prefix=CHECK %s
// RUN: %clang -O3 -target aarch64-android-eabi -mno-fix-cortex-a53-835769 %s -S -o- \
// RUN: | FileCheck --check-prefix=CHECK-NO --check-prefix=CHECK %s
typedef long int64_t;
int64_t f_load_madd_64(int64_t a, int64_t b, int64_t *c) {

4
clang/test/Driver/aarch64-fix-cortex-a53-835769.c
View File

@ -4,6 +4,10 @@
// RUN: | FileCheck --check-prefix=CHECK-YES %s
// RUN: %clang -target aarch64-linux-eabi -mno-fix-cortex-a53-835769 %s -### 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO %s
// RUN: %clang -target aarch64-android-eabi %s -### 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-YES %s
// CHECK-DEF-NOT: "-backend-option" "-aarch64-fix-cortex-a53-835769"
// CHECK-YES: "-backend-option" "-aarch64-fix-cortex-a53-835769=1"
// CHECK-NO: "-backend-option" "-aarch64-fix-cortex-a53-835769=0"