d365a45cb3
Here we introduce three new GMIR instructions to cover a set of trap intrinsics. The idea behind it is that generic intrinsics shouldn't be used with G_INTRINSIC opcode. These new instructions can match perfectly with existing trap ISD nodes. It allows X86, AArch64, RISCV and Mips to reuse SelectionDAG patterns for selection and avoid manual selection. However AMDGPU is an exception. It selects traps during legalization regardless SelectionDAG or GlobalISel. Since there are not many places where traps are used, this change attempts to clean up all the usages of G_INTRINSIC with trap intrinsics. So, there is no stage when both G_TRAP and G_INTRINSIC_W_SIDE_EFFECTS(@llvm.trap) are allowed.
74 lines
2.3 KiB
LLVM
74 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-linux-gnu | FileCheck %s --check-prefixes=ALL,X64
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; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=x86_64-linux-gnu | FileCheck %s --check-prefixes=ALL,X64
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; RUN: llc < %s -global-isel -global-isel-abort=1 -mtriple=x86_64-linux-gnu | FileCheck %s --check-prefixes=ALL,GISEL-X64
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; RUN: llc < %s -mtriple=i686-linux-gnu | FileCheck %s --check-prefixes=ALL,X86
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; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=i686-linux-gnu | FileCheck %s --check-prefixes=ALL,X86
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; RUN: llc < %s -global-isel -global-isel-abort=1 -mtriple=i686-linux-gnu | FileCheck %s --check-prefixes=ALL,GISEL-X86
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declare void @llvm.trap()
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define void @test_trap() {
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; ALL-LABEL: test_trap:
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; ALL: # %bb.0:
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; ALL-NEXT: ud2
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; ALL-NEXT: ret{{[l|q]}}
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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() {
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; ALL-LABEL: test_debugtrap:
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; ALL: # %bb.0:
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; ALL-NEXT: int3
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; ALL-NEXT: ret{{[l|q]}}
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tail call void @llvm.debugtrap()
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ret void
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}
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define void @test_ubsantrap() {
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; ALL-LABEL: test_ubsantrap:
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; ALL: # %bb.0:
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; ALL-NEXT: ud1l 12(%eax), %eax
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; ALL-NEXT: ret{{[l|q]}}
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call void @llvm.ubsantrap(i8 12)
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ret void
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}
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define void @test_ubsantrap_custom() nounwind {
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; X64-LABEL: test_ubsantrap_custom:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: movl $42, %edi
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; X64-NEXT: callq guide@PLT
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; X64-NEXT: popq %rax
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; X64-NEXT: retq
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;
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; GISEL-X64-LABEL: test_ubsantrap_custom:
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; GISEL-X64: # %bb.0:
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; GISEL-X64-NEXT: pushq %rax
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; GISEL-X64-NEXT: movl $42, %edi
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; GISEL-X64-NEXT: callq guide
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; GISEL-X64-NEXT: popq %rax
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; GISEL-X64-NEXT: retq
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;
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; X86-LABEL: test_ubsantrap_custom:
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; X86: # %bb.0:
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; X86-NEXT: subl $12, %esp
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; X86-NEXT: movl $42, (%esp)
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; X86-NEXT: calll guide
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; X86-NEXT: addl $12, %esp
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; X86-NEXT: retl
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;
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; GISEL-X86-LABEL: test_ubsantrap_custom:
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; GISEL-X86: # %bb.0:
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; GISEL-X86-NEXT: subl $12, %esp
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; GISEL-X86-NEXT: movl $42, %eax
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; GISEL-X86-NEXT: movl %eax, (%esp)
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; GISEL-X86-NEXT: calll guide
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; GISEL-X86-NEXT: addl $12, %esp
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; GISEL-X86-NEXT: retl
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call void @llvm.ubsantrap(i8 42) "trap-func-name"="guide"
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ret void
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}
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