832666c45e
* 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 An outdated comment was also fixed.
83 lines
1.8 KiB
Plaintext
83 lines
1.8 KiB
Plaintext
test regalloc
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target i686
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; regex: V=v\d+
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; regex: REG=%r([abcd]x|[sd]i)
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; Tied operands, both are killed at instruction.
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function %tied_easy() -> i32 {
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block0:
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v0 = iconst.i32 12
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v1 = iconst.i32 13
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; not: copy
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; check: isub
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v2 = isub v0, v1
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return v2
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}
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; Tied operand is live after instruction.
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function %tied_alive() -> i32 {
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block0:
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v0 = iconst.i32 12
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v1 = iconst.i32 13
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; check: $(v0c=$V) = copy v0
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; check: v2 = isub $v0c, v1
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v2 = isub v0, v1
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; check: v3 = iadd v2, v0
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v3 = iadd v2, v0
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return v3
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}
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; Fixed register constraint.
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function %fixed_op() -> i32 {
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block0:
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; check: ,%rax]
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; sameln: v0 = iconst.i32 12
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v0 = iconst.i32 12
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v1 = iconst.i32 13
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; The dynamic shift amount must be in %rcx
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; check: regmove v0, %rax -> %rcx
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v2 = ishl v1, v0
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return v2
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}
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; Fixed register constraint twice.
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function %fixed_op_twice() -> i32 {
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block0:
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; check: ,%rax]
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; sameln: v0 = iconst.i32 12
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v0 = iconst.i32 12
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v1 = iconst.i32 13
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; The dynamic shift amount must be in %rcx
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; check: regmove v0, %rax -> %rcx
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v2 = ishl v1, v0
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; check: regmove v0, %rcx -> $REG
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; check: regmove v2, $REG -> %rcx
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v3 = ishl v0, v2
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return v3
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}
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; Tied use of a diverted register.
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function %fixed_op_twice() -> i32 {
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block0:
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; check: ,%rax]
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; sameln: v0 = iconst.i32 12
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v0 = iconst.i32 12
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v1 = iconst.i32 13
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; The dynamic shift amount must be in %rcx
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; check: regmove v0, %rax -> %rcx
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; check: v2 = ishl v1, v0
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v2 = ishl v1, v0
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; Now v0 is globally allocated to %rax, but diverted to %rcx.
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; Check that the tied def gets the diverted register.
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v3 = isub v0, v2
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; not: regmove
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; check: ,%rcx]
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; sameln: isub
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; Move it into place for the return value.
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; check: regmove v3, %rcx -> %rax
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return v3
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}
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