7214f7a79f
Summary: Until this commit, these have lowered to a call to abort(). `llvm.trap()` now lowers to `unimp`, which should trap on all systems. `llvm.debugtrap()` now lowers to `ebreak`, which is exactly what this instruction is for. Reviewers: asb, luismarques Reviewed By: asb Subscribers: hiraditya, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69390
39 lines
970 B
LLVM
39 lines
970 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I %s
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; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV64I %s
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; Verify that we lower @llvm.trap() and @llvm.debugtrap() correctly.
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declare void @llvm.trap()
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declare void @llvm.debugtrap()
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define void @test_trap() nounwind {
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; RV32I-LABEL: test_trap:
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; RV32I: # %bb.0:
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; RV32I-NEXT: unimp
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: test_trap:
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; RV64I: # %bb.0:
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; RV64I-NEXT: unimp
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; RV64I-NEXT: ret
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tail call void @llvm.trap()
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ret void
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}
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define void @test_debugtrap() nounwind {
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; RV32I-LABEL: test_debugtrap:
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; RV32I: # %bb.0:
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; RV32I-NEXT: ebreak
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; RV32I-NEXT: ret
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;
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; RV64I-LABEL: test_debugtrap:
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; RV64I: # %bb.0:
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; RV64I-NEXT: ebreak
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; RV64I-NEXT: ret
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tail call void @llvm.debugtrap()
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ret void
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}
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