| ; RUN: not llc -O0 -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s --check-prefix=ERROR |
| ; RUN: llc -O0 -global-isel -global-isel-abort=0 -verify-machineinstrs %s -o - 2>&1 | FileCheck %s --check-prefix=FALLBACK |
| ; RUN: llc -O0 -global-isel -global-isel-abort=2 -pass-remarks-missed='gisel*' -verify-machineinstrs %s -o %t.out 2> %t.err |
| ; RUN: FileCheck %s --check-prefix=FALLBACK-WITH-REPORT-OUT < %t.out |
| ; RUN: FileCheck %s --check-prefix=FALLBACK-WITH-REPORT-ERR < %t.err |
| ; This file checks that the fallback path to selection dag works. |
| ; The test is fragile in the sense that it must be updated to expose |
| ; something that fails with global-isel. |
| ; When we cannot produce a test case anymore, that means we can remove |
| ; the fallback path. |
| |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--" |
| |
| ; We use __fixunstfti as the common denominator for __fixunstfti on Linux and |
| ; ___fixunstfti on iOS |
| ; ERROR: unable to lower arguments: i128 (i128)* (in function: ABIi128) |
| ; FALLBACK: ldr q0, |
| ; FALLBACK-NEXT: bl __fixunstfti |
| ; |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to lower arguments: i128 (i128)* (in function: ABIi128) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for ABIi128 |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: ABIi128: |
| ; FALLBACK-WITH-REPORT-OUT: ldr q0, |
| ; FALLBACK-WITH-REPORT-OUT-NEXT: bl __fixunstfti |
| define i128 @ABIi128(i128 %arg1) { |
| %farg1 = bitcast i128 %arg1 to fp128 |
| %res = fptoui fp128 %farg1 to i128 |
| ret i128 %res |
| } |
| |
| ; It happens that we don't handle ConstantArray instances yet during |
| ; translation. Any other constant would be fine too. |
| |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate constant: [1 x double] (in function: constant) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for constant |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: constant: |
| ; FALLBACK-WITH-REPORT-OUT: fmov d0, #1.0 |
| define [1 x double] @constant() { |
| ret [1 x double] [double 1.0] |
| } |
| |
| ; The key problem here is that we may fail to create an MBB referenced by a |
| ; PHI. If so, we cannot complete the G_PHI and mustn't try or bad things |
| ; happen. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: cannot select: G_STORE %vreg5, %vreg2; mem:ST4[%addr] GPR:%vreg5,%vreg2 (in function: pending_phis) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for pending_phis |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: pending_phis: |
| define i32 @pending_phis(i1 %tst, i32 %val, i32* %addr) { |
| br i1 %tst, label %true, label %false |
| |
| end: |
| %res = phi i32 [%val, %true], [42, %false] |
| ret i32 %res |
| |
| true: |
| store atomic i32 42, i32* %addr seq_cst, align 4 |
| br label %end |
| |
| false: |
| br label %end |
| |
| } |
| |
| ; General legalizer inability to handle types whose size wasn't a power of 2. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to legalize instruction: %vreg1<def>(s42) = G_LOAD %vreg0; mem:LD6[%addr](align=8) (in function: odd_type) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for odd_type |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: odd_type: |
| define void @odd_type(i42* %addr) { |
| %val42 = load i42, i42* %addr |
| ret void |
| } |
| |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to legalize instruction: %vreg1<def>(<7 x s32>) = G_LOAD %vreg0; mem:LD28[%addr](align=32) (in function: odd_vector) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for odd_vector |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: odd_vector: |
| define void @odd_vector(<7 x i32>* %addr) { |
| %vec = load <7 x i32>, <7 x i32>* %addr |
| ret void |
| } |
| |
| ; RegBankSelect crashed when given invalid mappings, and AArch64's |
| ; implementation produce valid-but-nonsense mappings for G_SEQUENCE. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to map instruction |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for sequence_mapping |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: sequence_mapping: |
| define void @sequence_mapping([2 x i64] %in) { |
| ret void |
| } |
| |
| ; Legalizer was asserting when it enountered an unexpected default action. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to map instruction |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for legal_default |
| ; FALLBACK-WITH-REPORT-LABEL: legal_default: |
| define void @legal_default([8 x i8] %in) { |
| insertvalue { [4 x i8], [8 x i8], [4 x i8] } undef, [8 x i8] %in, 1 |
| ret void |
| } |
| |
| ; AArch64 was asserting instead of returning an invalid mapping for unknown |
| ; sizes. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction: ret: ' ret i128 undef' (in function: sequence_sizes) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for sequence_sizes |
| ; FALLBACK-WITH-REPORT-LABEL: sequence_sizes: |
| define i128 @sequence_sizes([8 x i8] %in) { |
| ret i128 undef |
| } |
| |
| ; Just to make sure we don't accidentally emit a normal load/store. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: cannot select: %vreg2<def>(s64) = G_LOAD %vreg0; mem:LD8[%addr] GPR:%vreg2,%vreg0 (in function: atomic_ops) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for atomic_ops |
| ; FALLBACK-WITH-REPORT-LABEL: atomic_ops: |
| define i64 @atomic_ops(i64* %addr) { |
| store atomic i64 0, i64* %addr unordered, align 8 |
| %res = load atomic i64, i64* %addr seq_cst, align 8 |
| ret i64 %res |
| } |
| |
| ; Make sure we don't mess up metadata arguments. |
| declare void @llvm.write_register.i64(metadata, i64) |
| |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction: call: ' call void @llvm.write_register.i64(metadata !0, i64 0)' (in function: test_write_register_intrin) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for test_write_register_intrin |
| ; FALLBACK-WITH-REPORT-LABEL: test_write_register_intrin: |
| define void @test_write_register_intrin() { |
| call void @llvm.write_register.i64(metadata !{!"sp"}, i64 0) |
| ret void |
| } |
| |
| @_ZTIi = external global i8* |
| declare i32 @__gxx_personality_v0(...) |
| |
| ; Check that we fallback on invoke translation failures. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction: invoke: ' invoke void %callee(i128 0) |
| ; FALLBACK-WITH-REPORT-NEXT: to label %continue unwind label %broken' (in function: invoke_weird_type) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for invoke_weird_type |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: invoke_weird_type: |
| define void @invoke_weird_type(void(i128)* %callee) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| invoke void %callee(i128 0) |
| to label %continue unwind label %broken |
| |
| broken: |
| landingpad { i8*, i32 } catch i8* bitcast(i8** @_ZTIi to i8*) |
| ret void |
| |
| continue: |
| ret void |
| } |
| |
| ; Check that we fallback on invoke translation failures. |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to legalize instruction: %vreg0<def>(s128) = G_FCONSTANT quad 2 |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for test_quad_dump |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: test_quad_dump: |
| define fp128 @test_quad_dump() { |
| ret fp128 0xL00000000000000004000000000000000 |
| } |
| |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to legalize instruction: %vreg0<def>(p0) = G_EXTRACT_VECTOR_ELT %vreg1, %vreg2; (in function: vector_of_pointers_extractelement) |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for vector_of_pointers_extractelement |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: vector_of_pointers_extractelement: |
| @var = global <2 x i16*> zeroinitializer |
| define void @vector_of_pointers_extractelement() { |
| br label %end |
| |
| block: |
| %dummy = extractelement <2 x i16*> %vec, i32 0 |
| ret void |
| |
| end: |
| %vec = load <2 x i16*>, <2 x i16*>* undef |
| br label %block |
| } |
| |
| ; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to legalize instruction: %vreg0<def>(<2 x p0>) = G_INSERT_VECTOR_ELT %vreg1, %vreg2, %vreg3; (in function: vector_of_pointers_insertelement |
| ; FALLBACK-WITH-REPORT-ERR: warning: Instruction selection used fallback path for vector_of_pointers_insertelement |
| ; FALLBACK-WITH-REPORT-OUT-LABEL: vector_of_pointers_insertelement: |
| define void @vector_of_pointers_insertelement() { |
| br label %end |
| |
| block: |
| %dummy = insertelement <2 x i16*> %vec, i16* null, i32 0 |
| ret void |
| |
| end: |
| %vec = load <2 x i16*>, <2 x i16*>* undef |
| br label %block |
| } |