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llvm-project/llvm/test/CodeGen/ARM/vldmia-sched.mir

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[ARM] Don't confuse the scheduler for very large VLDMDIA etc. ARMBaseInstrInfo::getNumLDMAddresses is making bad assumptions about the memory operands of load and store-multiple operations. This doesn't really fix the problem properly, but it's enough to prevent crashing, at least. Fixes https://bugs.llvm.org/show_bug.cgi?id=41231 . Differential Revision: https://reviews.llvm.org/D59834 llvm-svn: 357109
2019-03-28 02:33:30 +08:00
# RUN: llc -run-pass=post-RA-sched %s -o - | FileCheck %s
# CHECK: VLDMDIA
--- |
target triple = "thumbv7-w64-windows-gnu"
@a = common dso_local local_unnamed_addr global [1 x float] zeroinitializer, align 4
define dso_local arm_aapcs_vfpcc i32 @g() local_unnamed_addr #0 {
unreachable
}
attributes #0 = { "target-cpu"="cortex-a9" }
...
---
name: g
[Alignment] Use llvm::Align in MachineFunction and TargetLowering - fixes mir parsing Summary: This catches malformed mir files which specify alignment as log2 instead of pow2. See https://reviews.llvm.org/D65945 for reference, This is patch is part of a series to introduce an Alignment type. See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html See this patch for the introduction of the type: https://reviews.llvm.org/D64790 Reviewers: courbet Subscribers: MatzeB, qcolombet, dschuff, arsenm, sdardis, nemanjai, jvesely, nhaehnle, hiraditya, kbarton, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67433 llvm-svn: 371608
2019-09-11 19:16:48 +08:00
alignment: 2
[ARM] Don't confuse the scheduler for very large VLDMDIA etc. ARMBaseInstrInfo::getNumLDMAddresses is making bad assumptions about the memory operands of load and store-multiple operations. This doesn't really fix the problem properly, but it's enough to prevent crashing, at least. Fixes https://bugs.llvm.org/show_bug.cgi?id=41231 . Differential Revision: https://reviews.llvm.org/D59834 llvm-svn: 357109
2019-03-28 02:33:30 +08:00
tracksRegLiveness: true
body: |
bb.0:
BUNDLE implicit-def $r0 {
$r0 = t2MOVi16 target-flags(arm-lo16) @a, 14, $noreg
$r0 = t2MOVTi16 internal $r0, target-flags(arm-hi16) @a, 14, $noreg
}
$r1 = t2ADDri $r0, 8, 14, $noreg, $noreg
VLDMDIA killed $r1, 14, $noreg, def $d23, def $d24, def $d25, def $d26, def $d27, def $d28, def $d29, def $d30, def $d31 :: (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 2, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 4, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 6, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 8, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 10, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 12, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 14, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 16, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 18, i32 0) to <2 x float>*)`, align 4)
$r0, dead $cpsr = tADDi8 killed $r0, 80, 14, $noreg
VLDMDIA killed $r0, 14, $noreg, def $d0, def $d1, def $d2, def $d3, def $d4, def $d5, def $d6 :: (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 20, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 22, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 24, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 26, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 28, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 30, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 32, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 33, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 34, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 35, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 36, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 37, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 38, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 39, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 40, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 41, i32 0) to <2 x float>*)`, align 4), (load 8 from `<2 x float>* bitcast (float* getelementptr ([1 x float], [1 x float]* @a, i32 42, i32 0) to <2 x float>*)`, align 4)
...