Files
wasmtime/cranelift/filetests/filetests/licm/reject_load_readonly.clif
Ryan Hunt 832666c45e Mass rename Ebb and relatives to Block (#1365)
* Manually rename BasicBlock to BlockPredecessor

BasicBlock is a pair of (Ebb, Inst) that is used to represent the
basic block subcomponent of an Ebb that is a predecessor to an Ebb.

Eventually we will be able to remove this struct, but for now it
makes sense to give it a non-conflicting name so that we can start
to transition Ebb to represent a basic block.

I have not updated any comments that refer to BasicBlock, as
eventually we will remove BlockPredecessor and replace with Block,
which is a basic block, so the comments will become correct.

* Manually rename SSABuilder block types to avoid conflict

SSABuilder has its own Block and BlockData types. These along with
associated identifier will cause conflicts in a later commit, so
they are renamed to be more verbose here.

* Automatically rename 'Ebb' to 'Block' in *.rs

* Automatically rename 'EBB' to 'block' in *.rs

* Automatically rename 'ebb' to 'block' in *.rs

* Automatically rename 'extended basic block' to 'basic block' in *.rs

* Automatically rename 'an basic block' to 'a basic block' in *.rs

* Manually update comment for `Block`

`Block`'s wikipedia article required an update.

* Automatically rename 'an `Block`' to 'a `Block`' in *.rs

* Automatically rename 'extended_basic_block' to 'basic_block' in *.rs

* Automatically rename 'ebb' to 'block' in *.clif

* Manually rename clif constant that contains 'ebb' as substring to avoid conflict

* Automatically rename filecheck uses of 'EBB' to 'BB'

'regex: EBB' -> 'regex: BB'
'$EBB' -> '$BB'

* Automatically rename 'EBB' 'Ebb' to 'block' in *.clif

* Automatically rename 'an block' to 'a block' in *.clif

* Fix broken testcase when function name length increases

Test function names are limited to 16 characters. This causes
the new longer name to be truncated and fail a filecheck test. An
outdated comment was also fixed.
2020-02-07 10:46:47 -06:00

56 lines
1.4 KiB
Plaintext

test licm
target x86_64
;; Maybe-trapping readonly load from address that is not
;; loop-dependent should *not* be hoisted out of loop, though the
;; address computation can be hoisted.
function %hoist_load(i32, i64 vmctx) -> i32 {
gv0 = vmctx
gv1 = load.i64 notrap aligned readonly gv0
heap0 = static gv1, min 0x1_0000, bound 0x1_0000_0000, offset_guard 0x8000_0000, index_type i32
block0(v0: i32, v1: i64):
jump block1(v0, v1)
block1(v2: i32, v3: i64):
v4 = iconst.i32 1
v5 = heap_addr.i64 heap0, v4, 1
v6 = load.i32 aligned readonly v5
v7 = iadd v2, v6
brz v2, block3(v2)
jump block2
block2:
v8 = isub v2, v4
jump block1(v8, v3)
block3(v9: i32):
return v9
}
; sameln: function %hoist_load(i32, i64 vmctx) -> i32 fast {
; nextln: gv0 = vmctx
; nextln: gv1 = load.i64 notrap aligned readonly gv0
; nextln: heap0 = static gv1, min 0x0001_0000, bound 0x0001_0000_0000, offset_guard 0x8000_0000, index_type i32
; nextln:
; nextln: block0(v0: i32, v1: i64):
; nextln: v4 = iconst.i32 1
; nextln: v5 = heap_addr.i64 heap0, v4, 1
; nextln: jump block1(v0, v1)
; nextln:
; nextln: block1(v2: i32, v3: i64):
; nextln: v6 = load.i32 aligned readonly v5
; nextln: v7 = iadd v2, v6
; nextln: brz v2, block3(v2)
; nextln: jump block2
; nextln:
; nextln: block2:
; nextln: v8 = isub.i32 v2, v4
; nextln: jump block1(v8, v3)
; nextln:
; nextln: block3(v9: i32):
; nextln: return v9
; nextln: }