a36d31478c
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
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
// RUN: %clang_cc1 -triple aarch64-eabi -target-feature +tme -S -emit-llvm %s -o - | FileCheck %s
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// RUN: %clang_cc1 -DUSE_ACLE -triple aarch64-eabi -target-feature +tme -S -emit-llvm %s -o - | FileCheck %s
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#define A -1
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constexpr int f() { return 65536; }
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#ifdef USE_ACLE
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#include "arm_acle.h"
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void test_tme_funcs() {
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__tstart();
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(void)__ttest();
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__tcommit();
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__tcancel(0x789a);
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__tcancel(f() + A);
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}
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#else
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void test_tme_funcs() {
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__builtin_arm_tstart();
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(void)__builtin_arm_ttest();
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__builtin_arm_tcommit();
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__builtin_arm_tcancel(0x789a);
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__builtin_arm_tcancel(f() + A);
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}
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#endif
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// CHECK: call i64 @llvm.aarch64.tstart()
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// CHECK: call i64 @llvm.aarch64.ttest()
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// CHECK: call void @llvm.aarch64.tcommit()
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// CHECK: call void @llvm.aarch64.tcancel(i64 30874)
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// CHECK: call void @llvm.aarch64.tcancel(i64 65535)
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// CHECK: declare i64 @llvm.aarch64.tstart() #1
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// CHECK: declare i64 @llvm.aarch64.ttest() #1
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// CHECK: declare void @llvm.aarch64.tcommit() #1
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// CHECK: declare void @llvm.aarch64.tcancel(i64 immarg) #1
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#ifdef __ARM_FEATURE_TME
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extern "C" void arm_feature_tme_defined() {}
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#endif
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// CHECK: define void @arm_feature_tme_defined()
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// CHECK: attributes #1 = { nounwind }
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