r353957 - [AArch64] Support reserving arbitrary general purpose registers
Petr Hosek via cfe-commits
cfe-commits at lists.llvm.org
Wed Feb 13 09:28:47 PST 2019
Author: phosek
Date: Wed Feb 13 09:28:47 2019
New Revision: 353957
URL: http://llvm.org/viewvc/llvm-project?rev=353957&view=rev
Log:
[AArch64] Support reserving arbitrary general purpose registers
This is a follow up to D48580 and D48581 which allows reserving
arbitrary general purpose registers with the exception of registers
with special purpose (X8, X16-X18, X29, X30) and registers used by LLVM
(X0, X19). This change also generalizes some of the existing logic to
rely entirely on values generated from tablegen.
Differential Revision: https://reviews.llvm.org/D56305
Modified:
cfe/trunk/include/clang/Driver/Options.td
cfe/trunk/lib/Driver/ToolChains/Arch/AArch64.cpp
cfe/trunk/test/Driver/aarch64-fixed-x-register.c
Modified: cfe/trunk/include/clang/Driver/Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=353957&r1=353956&r2=353957&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Wed Feb 13 09:28:47 2019
@@ -2134,7 +2134,7 @@ def mfix_cortex_a53_835769 : Flag<["-"],
def mno_fix_cortex_a53_835769 : Flag<["-"], "mno-fix-cortex-a53-835769">,
Group<m_aarch64_Features_Group>,
HelpText<"Don't workaround Cortex-A53 erratum 835769 (AArch64 only)">;
-foreach i = {1-7,18,20} in
+foreach i = {1-7,9-15,18,20-28} in
def ffixed_x#i : Flag<["-"], "ffixed-x"#i>, Group<m_aarch64_Features_Group>,
HelpText<"Reserve the "#i#" register (AArch64 only)">;
Modified: cfe/trunk/lib/Driver/ToolChains/Arch/AArch64.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Arch/AArch64.cpp?rev=353957&r1=353956&r2=353957&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Arch/AArch64.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Arch/AArch64.cpp Wed Feb 13 09:28:47 2019
@@ -334,12 +334,54 @@ fp16_fml_fallthrough:
if (Args.hasArg(options::OPT_ffixed_x7))
Features.push_back("+reserve-x7");
+ if (Args.hasArg(options::OPT_ffixed_x9))
+ Features.push_back("+reserve-x9");
+
+ if (Args.hasArg(options::OPT_ffixed_x10))
+ Features.push_back("+reserve-x10");
+
+ if (Args.hasArg(options::OPT_ffixed_x11))
+ Features.push_back("+reserve-x11");
+
+ if (Args.hasArg(options::OPT_ffixed_x12))
+ Features.push_back("+reserve-x12");
+
+ if (Args.hasArg(options::OPT_ffixed_x13))
+ Features.push_back("+reserve-x13");
+
+ if (Args.hasArg(options::OPT_ffixed_x14))
+ Features.push_back("+reserve-x14");
+
+ if (Args.hasArg(options::OPT_ffixed_x15))
+ Features.push_back("+reserve-x15");
+
if (Args.hasArg(options::OPT_ffixed_x18))
Features.push_back("+reserve-x18");
if (Args.hasArg(options::OPT_ffixed_x20))
Features.push_back("+reserve-x20");
+ if (Args.hasArg(options::OPT_ffixed_x21))
+ Features.push_back("+reserve-x21");
+
+ if (Args.hasArg(options::OPT_ffixed_x22))
+ Features.push_back("+reserve-x22");
+
+ if (Args.hasArg(options::OPT_ffixed_x23))
+ Features.push_back("+reserve-x23");
+
+ if (Args.hasArg(options::OPT_ffixed_x24))
+ Features.push_back("+reserve-x24");
+
+ if (Args.hasArg(options::OPT_ffixed_x26))
+ Features.push_back("+reserve-x26");
+
+ if (Args.hasArg(options::OPT_ffixed_x27))
+ Features.push_back("+reserve-x27");
+
+ if (Args.hasArg(options::OPT_ffixed_x28))
+ Features.push_back("+reserve-x28");
+
if (Args.hasArg(options::OPT_fcall_saved_x8))
Features.push_back("+call-saved-x8");
Modified: cfe/trunk/test/Driver/aarch64-fixed-x-register.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/aarch64-fixed-x-register.c?rev=353957&r1=353956&r2=353957&view=diff
==============================================================================
--- cfe/trunk/test/Driver/aarch64-fixed-x-register.c (original)
+++ cfe/trunk/test/Driver/aarch64-fixed-x-register.c Wed Feb 13 09:28:47 2019
@@ -26,6 +26,34 @@
// RUN: FileCheck --check-prefix=CHECK-FIXED-X7 < %t %s
// CHECK-FIXED-X7: "-target-feature" "+reserve-x7"
+// RUN: %clang -target aarch64-none-gnu -ffixed-x9 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X9 < %t %s
+// CHECK-FIXED-X9: "-target-feature" "+reserve-x9"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x10 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X10 < %t %s
+// CHECK-FIXED-X10: "-target-feature" "+reserve-x10"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x11 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X11 < %t %s
+// CHECK-FIXED-X11: "-target-feature" "+reserve-x11"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x12 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X12 < %t %s
+// CHECK-FIXED-X12: "-target-feature" "+reserve-x12"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x13 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X13 < %t %s
+// CHECK-FIXED-X13: "-target-feature" "+reserve-x13"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x14 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X14 < %t %s
+// CHECK-FIXED-X14: "-target-feature" "+reserve-x14"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x15 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X15 < %t %s
+// CHECK-FIXED-X15: "-target-feature" "+reserve-x15"
+
// RUN: %clang -target aarch64-none-gnu -ffixed-x18 -### %s 2> %t
// RUN: FileCheck --check-prefix=CHECK-FIXED-X18 < %t %s
// CHECK-FIXED-X18: "-target-feature" "+reserve-x18"
@@ -34,6 +62,38 @@
// RUN: FileCheck --check-prefix=CHECK-FIXED-X20 < %t %s
// CHECK-FIXED-X20: "-target-feature" "+reserve-x20"
+// RUN: %clang -target aarch64-none-gnu -ffixed-x21 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X21 < %t %s
+// CHECK-FIXED-X21: "-target-feature" "+reserve-x21"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x22 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X22 < %t %s
+// CHECK-FIXED-X22: "-target-feature" "+reserve-x22"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x23 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X23 < %t %s
+// CHECK-FIXED-X23: "-target-feature" "+reserve-x23"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x24 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X24 < %t %s
+// CHECK-FIXED-X24: "-target-feature" "+reserve-x24"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x25 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X25 < %t %s
+// CHECK-FIXED-X25: "-target-feature" "+reserve-x25"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x26 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X26 < %t %s
+// CHECK-FIXED-X26: "-target-feature" "+reserve-x26"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x27 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X27 < %t %s
+// CHECK-FIXED-X27: "-target-feature" "+reserve-x27"
+
+// RUN: %clang -target aarch64-none-gnu -ffixed-x28 -### %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-FIXED-X28 < %t %s
+// CHECK-FIXED-X28: "-target-feature" "+reserve-x28"
+
// Test multiple of reserve-x# options together.
// RUN: %clang -target aarch64-none-gnu \
// RUN: -ffixed-x1 \
@@ -55,8 +115,23 @@
// RUN: -ffixed-x5 \
// RUN: -ffixed-x6 \
// RUN: -ffixed-x7 \
+// RUN: -ffixed-x9 \
+// RUN: -ffixed-x10 \
+// RUN: -ffixed-x11 \
+// RUN: -ffixed-x12 \
+// RUN: -ffixed-x13 \
+// RUN: -ffixed-x14 \
+// RUN: -ffixed-x15 \
// RUN: -ffixed-x18 \
// RUN: -ffixed-x20 \
+// RUN: -ffixed-x21 \
+// RUN: -ffixed-x22 \
+// RUN: -ffixed-x23 \
+// RUN: -ffixed-x24 \
+// RUN: -ffixed-x25 \
+// RUN: -ffixed-x26 \
+// RUN: -ffixed-x27 \
+// RUN: -ffixed-x28 \
// RUN: -### %s 2> %t
// RUN: FileCheck \
// RUN: --check-prefix=CHECK-FIXED-X1 \
@@ -66,6 +141,21 @@
// RUN: --check-prefix=CHECK-FIXED-X5 \
// RUN: --check-prefix=CHECK-FIXED-X6 \
// RUN: --check-prefix=CHECK-FIXED-X7 \
+// RUN: --check-prefix=CHECK-FIXED-X9 \
+// RUN: --check-prefix=CHECK-FIXED-X10 \
+// RUN: --check-prefix=CHECK-FIXED-X11 \
+// RUN: --check-prefix=CHECK-FIXED-X12 \
+// RUN: --check-prefix=CHECK-FIXED-X13 \
+// RUN: --check-prefix=CHECK-FIXED-X14 \
+// RUN: --check-prefix=CHECK-FIXED-X15 \
// RUN: --check-prefix=CHECK-FIXED-X18 \
// RUN: --check-prefix=CHECK-FIXED-X20 \
+// RUN: --check-prefix=CHECK-FIXED-X21 \
+// RUN: --check-prefix=CHECK-FIXED-X22 \
+// RUN: --check-prefix=CHECK-FIXED-X23 \
+// RUN: --check-prefix=CHECK-FIXED-X24 \
+// RUN: --check-prefix=CHECK-FIXED-X25 \
+// RUN: --check-prefix=CHECK-FIXED-X26 \
+// RUN: --check-prefix=CHECK-FIXED-X27 \
+// RUN: --check-prefix=CHECK-FIXED-X28 \
// RUN: < %t %s
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