Files
wasmtime/cranelift/filetests/filetests/regalloc/basic.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outdated comment was also fixed.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

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test regalloc
; We can add more ISAs once they have defined encodings.
target riscv32
; regex: RX=%x\d+
function %add(i32, i32) {
block0(v1: i32, v2: i32):
v3 = iadd v1, v2
; check: [R#0c,%x5]
; sameln: iadd
return
}
; Function with a dead argument.
function %dead_arg(i32, i32) -> i32{
block0(v1: i32, v2: i32):
; not: regmove
; check: return v1
return v1
}
; Return a value from a different register.
function %move1(i32, i32) -> i32 {
block0(v1: i32, v2: i32):
; not: regmove
; check: regmove v2, %x11 -> %x10
; nextln: return v2
return v2
}
; Swap two registers.
function %swap(i32, i32) -> i32, i32 {
block0(v1: i32, v2: i32):
; not: regmove
; check: regmove v2, %x11 -> $(tmp=$RX)
; nextln: regmove v1, %x10 -> %x11
; nextln: regmove v2, $tmp -> %x10
; nextln: return v2, v1
return v2, v1
}
; Return a block argument.
function %retblock(i32, i32) -> i32 {
block0(v1: i32, v2: i32):
brnz v1, block1(v1)
jump block1(v2)
block1(v10: i32):
return v10
}
; Pass a block argument as a function argument.
function %callblock(i32, i32) -> i32 {
fn0 = %foo(i32) -> i32
block0(v1: i32, v2: i32):
brnz v1, block1(v1)
jump block1(v2)
block1(v10: i32):
v11 = call fn0(v10)
return v11
}
; Pass a block argument as a jump argument.
function %jumpblock(i32, i32) -> i32 {
fn0 = %foo(i32) -> i32
block0(v1: i32, v2: i32):
brnz v1, block1(v1, v2)
jump block1(v2, v1)
block1(v10: i32, v11: i32):
jump block2(v10, v11)
block2(v20: i32, v21: i32):
return v21
}