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llvm-mirror/test/CodeGen/AArch64/GlobalISel/fp128-legalize-crash-pr35690.mir
Guillaume Chatelet d49cb60862 [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 11:16:48 +00:00

46 lines
1.3 KiB
YAML

# RUN: llc -O0 -run-pass=legalizer -global-isel-abort=0 %s -o - | FileCheck %s
--- |
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64"
define fp128 @x(fp128 %a) {
entry:
%a.addr = alloca fp128, align 16
store fp128 %a, fp128* %a.addr, align 16
%0 = load fp128, fp128* %a.addr, align 16
%sub = fsub fp128 0xL00000000000000008000000000000000, %0
ret fp128 %sub
}
...
---
name: x
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
fixedStack:
stack:
- { id: 0, name: a.addr, type: default, offset: 0, size: 16, alignment: 16,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '',
debug-info-location: '' }
body: |
bb.1.entry:
liveins: $q0
; This test just checks we don't crash on G_FNEG of FP128 types. Expect to fall
; back until support is added for fp128.
; CHECK: ret
%0:_(s128) = COPY $q0
%1:_(p0) = G_FRAME_INDEX %stack.0.a.addr
G_STORE %0(s128), %1(p0) :: (store 16 into %ir.a.addr)
%2:_(s128) = G_LOAD %1(p0) :: (load 16 from %ir.a.addr)
%3:_(s128) = G_FNEG %2
$q0 = COPY %3(s128)
RET_ReallyLR implicit $q0
...