eca62f9204
When reading or writing a register that does not conform to the size of a hardware register, an error message is generated instead of a compiler crash. Differential Revision: https://reviews.llvm.org/D138008
22 lines
621 B
LLVM
22 lines
621 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: not llc < %s --mtriple=loongarch64 2>&1 | FileCheck %s
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define i32 @read_sp() nounwind {
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entry:
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; CHECK: On LA64, only 64-bit registers can be read.
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%a1 = call i32 @llvm.read_register.i32(metadata !0)
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ret i32 %a1
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}
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define void @write_sp(i32 %val) nounwind {
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entry:
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; CHECK: On LA64, only 64-bit registers can be written.
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call void @llvm.write_register.i32(metadata !0, i32 %val)
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ret void
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}
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declare i32 @llvm.read_register.i32(metadata) nounwind
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declare void @llvm.write_register.i32(metadata, i32) nounwind
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!0 = !{!"$sp\00"}
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