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llvm-project/clang/test/CodeGen/aarch64-tme.cpp

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[AArch64] Add support for Transactional Memory Extension (TME) Re-commit r366322 after some fixes TME is a future architecture technology, documented in https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools https://developer.arm.com/docs/ddi0601/a More about the future architectures: https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/new-technologies-for-the-arm-a-profile-architecture This patch adds support for the TME instructions TSTART, TTEST, TCOMMIT, and TCANCEL and the target feature/arch extension "tme". It also implements TME builtin functions, defined in ACLE Q2 2019 (https://developer.arm.com/docs/101028/latest) Differential Revision: https://reviews.llvm.org/D64416 Patch by Javed Absar and Momchil Velikov llvm-svn: 367428
2019-07-31 20:52:17 +08:00
// RUN: %clang_cc1 -triple aarch64-eabi -target-feature +tme -S -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -DUSE_ACLE -triple aarch64-eabi -target-feature +tme -S -emit-llvm %s -o - | FileCheck %s
#define A -1
constexpr int f() { return 65536; }
#ifdef USE_ACLE
#include "arm_acle.h"
void test_tme_funcs() {
__tstart();
(void)__ttest();
__tcommit();
__tcancel(0x789a);
__tcancel(f() + A);
}
#else
void test_tme_funcs() {
__builtin_arm_tstart();
(void)__builtin_arm_ttest();
__builtin_arm_tcommit();
__builtin_arm_tcancel(0x789a);
__builtin_arm_tcancel(f() + A);
}
#endif
// CHECK: call i64 @llvm.aarch64.tstart()
// CHECK: call i64 @llvm.aarch64.ttest()
// CHECK: call void @llvm.aarch64.tcommit()
// CHECK: call void @llvm.aarch64.tcancel(i64 30874)
// CHECK: call void @llvm.aarch64.tcancel(i64 65535)
// CHECK: declare i64 @llvm.aarch64.tstart() #1
// CHECK: declare i64 @llvm.aarch64.ttest() #1
// CHECK: declare void @llvm.aarch64.tcommit() #1
// CHECK: declare void @llvm.aarch64.tcancel(i64 immarg) #1
#ifdef __ARM_FEATURE_TME
extern "C" void arm_feature_tme_defined() {}
#endif
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK: define{{.*}} void @arm_feature_tme_defined()
[AArch64] Add support for Transactional Memory Extension (TME) Re-commit r366322 after some fixes TME is a future architecture technology, documented in https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools https://developer.arm.com/docs/ddi0601/a More about the future architectures: https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/new-technologies-for-the-arm-a-profile-architecture This patch adds support for the TME instructions TSTART, TTEST, TCOMMIT, and TCANCEL and the target feature/arch extension "tme". It also implements TME builtin functions, defined in ACLE Q2 2019 (https://developer.arm.com/docs/101028/latest) Differential Revision: https://reviews.llvm.org/D64416 Patch by Javed Absar and Momchil Velikov llvm-svn: 367428
2019-07-31 20:52:17 +08:00
[AArch64] Revert back to Intrinsic<> for TME instructions. This patch reverts back to Intrinsic for the instructions for the transactional memory extension, so nosync is not included.
2021-01-19 01:49:05 +08:00
// CHECK: attributes #1 = { nounwind willreturn }
[AArch64] Add support for Transactional Memory Extension (TME) Re-commit r366322 after some fixes TME is a future architecture technology, documented in https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools https://developer.arm.com/docs/ddi0601/a More about the future architectures: https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/new-technologies-for-the-arm-a-profile-architecture This patch adds support for the TME instructions TSTART, TTEST, TCOMMIT, and TCANCEL and the target feature/arch extension "tme". It also implements TME builtin functions, defined in ACLE Q2 2019 (https://developer.arm.com/docs/101028/latest) Differential Revision: https://reviews.llvm.org/D64416 Patch by Javed Absar and Momchil Velikov llvm-svn: 367428
2019-07-31 20:52:17 +08:00