mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
cc12b285b6
This will currently accept the old number of bytes syntax, and convert it to a scalar. This should be removed in the near future (I think I converted all of the tests already, but likely missed a few). Not sure what the exact syntax and policy should be. We can continue printing the number of bytes for non-generic instructions to avoid test churn and only allow non-scalar types for generic instructions. This will currently print the LLT in parentheses, but accept parsing the existing integers and implicitly converting to scalar. The parentheses are a bit ugly, but the parser logic seems unable to deal without either parentheses or some keyword to indicate the start of a type.
45 lines
1.7 KiB
YAML
45 lines
1.7 KiB
YAML
# RUN: llc -mtriple=aarch64--- -run-pass=prologepilog -run-pass=machine-outliner -verify-machineinstrs %s -o - | FileCheck %s
|
|
|
|
# AArch64 Branch Target Enforcement treats the BR and BLR indirect branch
|
|
# instructions differently. The BLR instruction can only target a BTI C
|
|
# instruction, and the BR instruction can only target a BTI J instruction. We
|
|
# always start indirectly-called functions with BTI C, so the outliner must not
|
|
# transform a BLR instruction into a BR instruction.
|
|
|
|
# There is an exception to this: BR X16 and BR X17 can also target a BTI C
|
|
# instruction. We make of this for general tail-calls (tested elsewhere), but
|
|
# don't currently make use of this in the outliner.
|
|
|
|
# CHECK-NOT: OUTLINED_FUNCTION_
|
|
|
|
--- |
|
|
@g = hidden local_unnamed_addr global i32 0, align 4
|
|
|
|
define hidden void @bar(void ()* nocapture %f) "branch-target-enforcement"="true" {
|
|
entry:
|
|
ret void
|
|
}
|
|
|
|
declare void @foo()
|
|
...
|
|
---
|
|
name: bar
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0.entry:
|
|
liveins: $x20, $x21, $lr, $x19
|
|
|
|
HINT 34
|
|
|
|
STRWui renamable $w21, renamable $x20, target-flags(aarch64-pageoff, aarch64-nc) @g :: (store (s32) into @g)
|
|
BLR renamable $x19, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
|
|
|
|
STRWui renamable $w21, renamable $x20, target-flags(aarch64-pageoff, aarch64-nc) @g :: (store (s32) into @g)
|
|
BLR renamable $x19, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
|
|
|
|
STRWui killed renamable $w21, killed renamable $x20, target-flags(aarch64-pageoff, aarch64-nc) @g :: (store (s32) into @g)
|
|
BLR killed renamable $x19, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
|
|
|
|
TCRETURNdi @foo, 0, csr_aarch64_aapcs, implicit $sp
|
|
...
|