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llvm-project/clang/test/CodeGen/arm-interrupt-attr.c

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Implement ARM GNU-style interrupt attribute This attribute allows users to use a modified C or C++ function as an ARM exception-handling function and, with care, to successfully return control to user-space after the issue has been dealt with. rdar://problem/14207019 llvm-svn: 191769
2013-10-01 22:34:25 +08:00
// RUN: %clang_cc1 -triple thumb-apple-darwin -target-abi aapcs -target-cpu cortex-m3 -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple arm-apple-darwin -target-abi apcs-gnu -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-APCS
__attribute__((interrupt)) void test_generic_interrupt() {
// CHECK: define arm_aapcscc void @test_generic_interrupt() [[GENERIC_ATTR:#[0-9]+]]
// CHECK-APCS: define void @test_generic_interrupt() [[GENERIC_ATTR:#[0-9]+]]
}
__attribute__((interrupt("IRQ"))) void test_irq_interrupt() {
// CHECK: define arm_aapcscc void @test_irq_interrupt() [[IRQ_ATTR:#[0-9]+]]
}
__attribute__((interrupt("FIQ"))) void test_fiq_interrupt() {
// CHECK: define arm_aapcscc void @test_fiq_interrupt() [[FIQ_ATTR:#[0-9]+]]
}
__attribute__((interrupt("SWI"))) void test_swi_interrupt() {
// CHECK: define arm_aapcscc void @test_swi_interrupt() [[SWI_ATTR:#[0-9]+]]
}
__attribute__((interrupt("ABORT"))) void test_abort_interrupt() {
// CHECK: define arm_aapcscc void @test_abort_interrupt() [[ABORT_ATTR:#[0-9]+]]
}
__attribute__((interrupt("UNDEF"))) void test_undef_interrupt() {
// CHECK: define arm_aapcscc void @test_undef_interrupt() [[UNDEF_ATTR:#[0-9]+]]
}
Attach attribute "disable-tail-calls" to the functions in the IR. This commit adds back the code that seems to have been dropped unintentionally in r176985. rdar://problem/13752163 Differential Revision: http://reviews.llvm.org/D10100 llvm-svn: 239426
2015-06-10 03:04:36 +08:00
// CHECK: attributes [[GENERIC_ATTR]] = { {{.*}} {{"interrupt"[^=]}}
// CHECK: attributes [[IRQ_ATTR]] = { {{.*}} "interrupt"="IRQ"
// CHECK: attributes [[FIQ_ATTR]] = { {{.*}} "interrupt"="FIQ"
// CHECK: attributes [[SWI_ATTR]] = { {{.*}} "interrupt"="SWI"
// CHECK: attributes [[ABORT_ATTR]] = { {{.*}} "interrupt"="ABORT"
// CHECK: attributes [[UNDEF_ATTR]] = { {{.*}} "interrupt"="UNDEF"
// CHECK-APCS: attributes [[GENERIC_ATTR]] = { {{.*}} "interrupt"