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 An outdated comment was also fixed.
41 lines
1.1 KiB
Plaintext
41 lines
1.1 KiB
Plaintext
test binemit
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set opt_level=speed_and_size
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target x86_64
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; Test that instruction shrinking eliminates REX prefixes when possible.
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; The binary encodings can be verified with the command:
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;
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; sed -ne 's/^ *; asm: *//p' filetests/isa/x86/shrink.clif | llvm-mc -show-encoding -triple=x86_64
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;
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function %test_shrinking(i32) -> i32 {
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block0(v0: i32 [ %rdi ]):
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; asm: movl $0x2,%eax
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[-,%rcx] v1 = iconst.i32 2 ; bin: b9 00000002
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; asm: subl %ecx,%edi
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[-,%rdi] v2 = isub v0, v1 ; bin: 29 cf
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return v2
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}
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function %test_not_shrinking(i32) -> i32 {
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block0(v0: i32 [ %r8 ]):
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; asm: movl $0x2,%eax
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[-,%rcx] v1 = iconst.i32 2 ; bin: b9 00000002
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; asm: subl %ecx,%edi
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[-,%r8] v2 = isub v0, v1 ; bin: 41 29 c8
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return v2
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}
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function %test_not_shrinking_i8() {
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block0:
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[-,%rsi] v1 = iconst.i8 1
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; asm: movsbl %sil,%esi
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[-,%rsi] v2 = sextend.i32 v1 ; bin: 40 0f be f6
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; asm: movzbl %sil,%esi
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[-,%rsi] v3 = uextend.i32 v1 ; bin: 40 0f b6 f6
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; asm: movzbl %sil,%esi
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[-,%rsi] v4 = uextend.i64 v1 ; bin: 40 0f b6 f6
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trap user0
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}
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