if (SplitLTOUnit)
CmdArgs.push_back("-fsplit-lto-unit");
- if (Arg *A = Args.getLastArg(options::OPT_fglobal_isel,
- options::OPT_fno_global_isel)) {
+ A = Args.getLastArg(options::OPT_fglobal_isel, options::OPT_fno_global_isel);
+ // If a configuration is fully supported, we don't issue any warnings or
+ // remarks.
+ bool IsFullySupported = getToolChain().getTriple().isOSDarwin() &&
+ Triple.getArch() == llvm::Triple::aarch64;
+ if (IsFullySupported) {
+ if (A && A->getOption().matches(options::OPT_fno_global_isel)) {
+ CmdArgs.push_back("-mllvm");
+ CmdArgs.push_back("-global-isel=0");
+ } else {
+ CmdArgs.push_back("-mllvm");
+ CmdArgs.push_back("-global-isel=1");
+ CmdArgs.push_back("-mllvm");
+ CmdArgs.push_back("-global-isel-abort=0");
+ }
+ } else if (A) {
CmdArgs.push_back("-mllvm");
if (A->getOption().matches(options::OPT_fglobal_isel)) {
CmdArgs.push_back("-global-isel=1");
// GISel is on by default on AArch64 -O0, so don't bother adding
// the fallback remarks for it. Other combinations will add a warning of
- // some kind.
+ // some kind, unless we're on Darwin.
bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64;
bool IsOptLevelSupported = false;
D.Diag(diag::err_drv_bitcode_unsupported_on_toolchain);
}
- // If GlobalISel is enabled, pass it through to LLVM.
- if (Arg *A = Args.getLastArg(options::OPT_fglobal_isel,
- options::OPT_fno_global_isel)) {
- if (A->getOption().matches(options::OPT_fglobal_isel)) {
+ // GlobalISel is enabled by default on AArch64 Darwin.
+ if (getToolChain().getArch() == llvm::Triple::aarch64) {
+ Arg *A = Args.getLastArg(options::OPT_fglobal_isel,
+ options::OPT_fno_global_isel);
+ if (!A || !A->getOption().matches(options::OPT_fno_global_isel)) {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-global-isel");
// Disable abort and fall back to SDAG silently.
// RUN: %clang -target aarch64 -fglobal-isel -S %s -### 2>&1 | FileCheck --check-prefix=ARM64-DEFAULT %s
// RUN: %clang -target aarch64 -fglobal-isel -S -O0 %s -### 2>&1 | FileCheck --check-prefix=ARM64-O0 %s
// RUN: %clang -target aarch64 -fglobal-isel -S -O2 %s -### 2>&1 | FileCheck --check-prefix=ARM64-O2 %s
+// RUN: %clang -arch arm64 -fglobal-isel -S -O2 %s -### 2>&1 | FileCheck --check-prefixes=DARWIN-ARM64-O2,ENABLED %s
// RUN: %clang -target aarch64 -fglobal-isel -Wno-global-isel -S -O2 %s -### 2>&1 | FileCheck --check-prefix=ARM64-O2-NOWARN %s
// RUN: %clang -target x86_64 -fglobal-isel -S %s -### 2>&1 | FileCheck --check-prefix=X86_64 %s
// ARM64-DEFAULT-NOT: warning: -fglobal-isel
// ARM64-DEFAULT-NOT: "-global-isel-abort=2"
// ARM64-O0-NOT: warning: -fglobal-isel
+// DARWIN-ARM64-O2-NOT: warning: -fglobal-isel
// ARM64-O2: warning: -fglobal-isel support is incomplete for this architecture at the current optimization level
// ARM64-O2: "-mllvm" "-global-isel-abort=2"
// ARM64-O2-NOWARN-NOT: warning: -fglobal-isel