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 An outdated comment was also fixed.
125 lines
2.8 KiB
Plaintext
125 lines
2.8 KiB
Plaintext
test postopt
|
|
target i686
|
|
|
|
; Test that compare+branch sequences are folded effectively on x86.
|
|
|
|
function %br_icmp(i32, i32) -> i32 {
|
|
block0(v0: i32, v1: i32):
|
|
[DynRexOp1icscc#39,%rdx] v2 = icmp slt v0, v1
|
|
[Op1t8jccd_long#85] brnz v2, block1
|
|
[Op1jmpb#eb] jump block2
|
|
|
|
block2:
|
|
[Op1ret#c3] return v1
|
|
|
|
block1:
|
|
[Op1pu_id#b8,%rax] v8 = iconst.i32 3
|
|
[Op1ret#c3] return v8
|
|
}
|
|
; sameln: function %br_icmp
|
|
; nextln: block0(v0: i32, v1: i32):
|
|
; nextln: v9 = ifcmp v0, v1
|
|
; nextln: v2 = trueif slt v9
|
|
; nextln: brif slt v9, block1
|
|
; nextln: jump block2
|
|
; nextln:
|
|
; nextln: block2:
|
|
; nextln: return v1
|
|
; nextln:
|
|
; nextln: block1:
|
|
; nextln: v8 = iconst.i32 3
|
|
; nextln: return v8
|
|
; nextln: }
|
|
|
|
; Use brz instead of brnz, so the condition is inverted.
|
|
|
|
function %br_icmp_inverse(i32, i32) -> i32 {
|
|
block0(v0: i32, v1: i32):
|
|
[DynRexOp1icscc#39,%rdx] v2 = icmp slt v0, v1
|
|
[Op1t8jccd_long#84] brz v2, block1
|
|
[Op1jmpb#eb] jump block2
|
|
|
|
block2:
|
|
[Op1ret#c3] return v1
|
|
|
|
block1:
|
|
[Op1pu_id#b8,%rax] v8 = iconst.i32 3
|
|
[Op1ret#c3] return v8
|
|
}
|
|
; sameln: function %br_icmp_inverse
|
|
; nextln: block0(v0: i32, v1: i32):
|
|
; nextln: v9 = ifcmp v0, v1
|
|
; nextln: v2 = trueif slt v9
|
|
; nextln: brif sge v9, block1
|
|
; nextln: jump block2
|
|
; nextln:
|
|
; nextln: block2:
|
|
; nextln: return v1
|
|
; nextln:
|
|
; nextln: block1:
|
|
; nextln: v8 = iconst.i32 3
|
|
; nextln: return v8
|
|
; nextln: }
|
|
|
|
; Use icmp_imm instead of icmp.
|
|
|
|
function %br_icmp_imm(i32, i32) -> i32 {
|
|
block0(v0: i32, v1: i32):
|
|
[DynRexOp1icscc_ib#7083] v2 = icmp_imm slt v0, 2
|
|
[Op1t8jccd_long#84] brz v2, block1
|
|
[Op1jmpb#eb] jump block2
|
|
|
|
block2:
|
|
[Op1ret#c3] return v1
|
|
|
|
block1:
|
|
[Op1pu_id#b8,%rax] v8 = iconst.i32 3
|
|
[Op1ret#c3] return v8
|
|
}
|
|
; sameln: function %br_icmp_imm
|
|
; nextln: block0(v0: i32, v1: i32):
|
|
; nextln: v9 = ifcmp_imm v0, 2
|
|
; nextln: v2 = trueif slt v9
|
|
; nextln: brif sge v9, block1
|
|
; nextln: jump block2
|
|
; nextln:
|
|
; nextln: block2:
|
|
; nextln: return v1
|
|
; nextln:
|
|
; nextln: block1:
|
|
; nextln: v8 = iconst.i32 3
|
|
; nextln: return v8
|
|
; nextln: }
|
|
|
|
; Use fcmp instead of icmp.
|
|
|
|
function %br_fcmp(f32, f32) -> f32 {
|
|
block0(v0: f32, v1: f32):
|
|
[Op2fcscc#42e,%rdx] v2 = fcmp gt v0, v1
|
|
[Op1t8jccd_long#84] brz v2, block1
|
|
[Op1jmpb#eb] jump block2
|
|
|
|
block2:
|
|
[Op1ret#c3] return v1
|
|
|
|
block1:
|
|
[Op1pu_id#b8,%rax] v18 = iconst.i32 0x40a8_0000
|
|
[Mp2frurm#56e,%xmm0] v8 = bitcast.f32 v18
|
|
[Op1ret#c3] return v8
|
|
}
|
|
; sameln: function %br_fcmp
|
|
; nextln: block0(v0: f32, v1: f32):
|
|
; nextln: v19 = ffcmp v0, v1
|
|
; nextln: v2 = trueff gt v19
|
|
; nextln: brff ule v19, block1
|
|
; nextln: jump block2
|
|
; nextln:
|
|
; nextln: block2:
|
|
; nextln: return v1
|
|
; nextln:
|
|
; nextln: block1:
|
|
; nextln: v18 = iconst.i32 0x40a8_0000
|
|
; nextln: v8 = bitcast.f32 v18
|
|
; nextln: return v8
|
|
; nextln: }
|