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Rename unsigned_offset_from to sub_ptr

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This commit is contained in:
Scott McMurray 2022-04-09 14:14:35 -07:00
parent 89a18cb600
commit e76b3f3b5b
11 changed files with 46 additions and 22 deletions
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2
compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs
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@ -721,7 +721,7 @@ fn codegen_regular_intrinsic_call<'tcx>(
let diff_bytes = fx.bcx.ins().isub(ptr, base);
// FIXME this can be an exact division.
let diff = if intrinsic == sym::ptr_offset_from_unsigned {
// Because diff_bytes ULT isize::MAX, this would be fine as signed,
// Because diff_bytes ULE isize::MAX, this would be fine as signed,
// but unsigned is slightly easier to codegen, so might as well.
fx.bcx.ins().udiv_imm(diff_bytes, pointee_size as i64)
} else {