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fix(std): render integer formatter extremes — i64::MIN and unsigned all-ones [F0.8]

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Resolves issue 0090. The `{}` integer formatter mis-rendered both ends of
the 64-bit range:

- `int_to_string` computed the magnitude as `0 - n`, which overflows for
  `s64::MIN` (its magnitude is unrepresentable as a positive s64) — the
  value stayed negative, the digit loop ran zero times, so only `-`
  printed. It now extracts digits straight from `n` (per-digit
  `|n % 10|`, `n` truncating toward zero), never negating MIN.

- `any_to_string`'s `case int:` formatted every integer as s64, so a u64
  all-ones value printed as `-1`. There was no `uint` type-category to
  distinguish signedness. Added an additive `type_is_unsigned(T)`
  reflection builtin (static fold + dynamic interp/LLVM paths, mirroring
  `type_name`), backed by the new `TypeTable.isUnsignedInt` predicate, and
  a `uint_to_string` formatter (unsigned decimal via long-division over
  four 16-bit limbs). `case int:` routes through `type_is_unsigned(type)`.

The 16-bit-limb split is factored into a shared `decompose_u16x4`, now
reused by `int_to_hex_string` (no second unsigned-math routine).

Regression: examples/0046-basic-int-formatter-extremes pins both extremes
plus a width spread; unit tests cover `isUnsignedInt`. Docs (specs.md
representation note, readme std API) updated for unsigned/extreme `{}`
behavior. IR snapshots refreshed for the two new std functions.
This commit is contained in:
agra
2026-06-05 09:05:37 +03:00
parent 5ef74a15f3
commit 64f77e9779
54 changed files with 36282 additions and 30161 deletions
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136
examples/expected/1309-ffi-objc-class-method-lowering.ir
View File

@@ -173,38 +173,43 @@ if.merge.15: ; preds = %entry
%icmpN = icmp slt i64 %loadN, 0
%allocaN = alloca i1, align 1
store i1 %icmpN, ptr %allocaN, align 1
%loadN = load i1, ptr %allocaN, align 1
br i1 %loadN, label %if.then.16, label %if.else.17
if.then.16: ; preds = %if.merge.15
%loadN = load i64, ptr %alloca, align 8
%sub = sub i64 0, %loadN
br label %if.merge.18
if.else.17: ; preds = %if.merge.15
%loadN = load i64, ptr %alloca, align 8
br label %if.merge.18
if.merge.18: ; preds = %if.else.17, %if.then.16
%bp = phi i64 [ %sub, %if.then.16 ], [ %loadN, %if.else.17 ]
%allocaN = alloca i64, align 8
store i64 %bp, ptr %allocaN, align 8
%call = call { ptr, i64 } @cstring(ptr %0, i64 20)
%allocaN = alloca { ptr, i64 }, align 8
store { ptr, i64 } %call, ptr %allocaN, align 8
%allocaN = alloca i64, align 8
store i64 19, ptr %allocaN, align 8
br label %while.hdr.19
%loadN = load i64, ptr %alloca, align 8
%allocaN = alloca i64, align 8
store i64 %loadN, ptr %allocaN, align 8
br label %while.hdr.16
while.hdr.19: ; preds = %while.body.20, %if.merge.18
while.hdr.16: ; preds = %if.merge.20, %if.merge.15
%loadN = load i64, ptr %allocaN, align 8
%icmpN = icmp sgt i64 %loadN, 0
br i1 %icmpN, label %while.body.20, label %while.exit.21
%icmpN = icmp ne i64 %loadN, 0
br i1 %icmpN, label %while.body.17, label %while.exit.18
while.body.20: ; preds = %while.hdr.19
while.body.17: ; preds = %while.hdr.16
%loadN = load i64, ptr %allocaN, align 8
%srem = srem i64 %loadN, 10
%add = add i64 %srem, 48
%allocaN = alloca i64, align 8
store i64 %srem, ptr %allocaN, align 8
%loadN = load i64, ptr %allocaN, align 8
%icmpN = icmp slt i64 %loadN, 0
br i1 %icmpN, label %if.then.19, label %if.merge.20
while.exit.18: ; preds = %while.hdr.16
%loadN = load i1, ptr %allocaN, align 1
br i1 %loadN, label %if.then.21, label %if.merge.22
if.then.19: ; preds = %while.body.17
%loadN = load i64, ptr %allocaN, align 8
%sub = sub i64 0, %loadN
store i64 %sub, ptr %allocaN, align 8
br label %if.merge.20
if.merge.20: ; preds = %if.then.19, %while.body.17
%loadN = load i64, ptr %allocaN, align 8
%add = add i64 %loadN, 48
%loadN = load i64, ptr %allocaN, align 8
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%igp.data = extractvalue { ptr, i64 } %loadN, 0
@@ -217,34 +222,32 @@ while.body.20: ; preds = %while.hdr.19
%loadN = load i64, ptr %allocaN, align 8
%subN = sub i64 %loadN, 1
store i64 %subN, ptr %allocaN, align 8
br label %while.hdr.19
br label %while.hdr.16
while.exit.21: ; preds = %while.hdr.19
%loadN = load i1, ptr %allocaN, align 1
br i1 %loadN, label %if.then.22, label %if.merge.23
if.then.22: ; preds = %while.exit.21
if.then.21: ; preds = %while.exit.18
%loadN = load i64, ptr %allocaN, align 8
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%igp.data21 = extractvalue { ptr, i64 } %loadN, 0
%igp.ptr22 = getelementptr i8, ptr %igp.data21, i64 %loadN
store i8 45, ptr %igp.ptr22, align 1
%igp.data24 = extractvalue { ptr, i64 } %loadN, 0
%igp.ptr25 = getelementptr i8, ptr %igp.data24, i64 %loadN
store i8 45, ptr %igp.ptr25, align 1
%loadN = load i64, ptr %allocaN, align 8
%subN = sub i64 %loadN, 1
store i64 %subN, ptr %allocaN, align 8
br label %if.merge.23
br label %if.merge.22
if.merge.23: ; preds = %if.then.22, %while.exit.21
if.merge.22: ; preds = %if.then.21, %while.exit.18
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
%loadN = load i64, ptr %allocaN, align 8
%subN = sub i64 20, %loadN
%subN = sub i64 %subN, 1
%subN = sub i64 19, %loadN
%callN = call { ptr, i64 } @substr(ptr %0, { ptr, i64 } %loadN, i64 %addN, i64 %subN)
ret { ptr, i64 } %callN
}
; Function Attrs: nounwind
declare ptr @uint_to_string(ptr, i64) #0
; Function Attrs: nounwind
declare ptr @bool_to_string(ptr, i1) #0
@@ -254,6 +257,9 @@ declare ptr @float_to_string(ptr, double) #0
; Function Attrs: nounwind
declare void @hex_group(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare [4 x i64] @decompose_u16x4(ptr, i64) #0
; Function Attrs: nounwind
declare ptr @int_to_hex_string(ptr, i64) #0
@@ -367,7 +373,7 @@ while.exit.2: ; preds = %while.hdr.0
%loadN = load { ptr, i64 }, ptr %alloca, align 8
%lenN = extractvalue { ptr, i64 } %loadN, 1
%icmpN = icmp slt i64 %loadN, %lenN
br i1 %icmpN, label %if.then.36, label %if.merge.37
br i1 %icmpN, label %if.then.35, label %if.merge.36
if.then.3: ; preds = %while.body.1
%loadN = load i64, ptr %allocaN, align 8
@@ -385,9 +391,9 @@ if.else.4: ; preds = %while.body.1
%ig.val21 = load i8, ptr %ig.ptr20, align 1
%cmp.ext22 = zext i8 %ig.val21 to i64
%icmpN = icmp eq i64 %cmp.ext22, 125
br i1 %icmpN, label %if.then.27, label %if.else.28
br i1 %icmpN, label %if.then.26, label %if.else.27
if.merge.5: ; preds = %if.merge.29, %if.merge.8
if.merge.5: ; preds = %if.merge.28, %if.merge.8
br label %while.hdr.0
if.then.6: ; preds = %if.then.3
@@ -425,9 +431,9 @@ if.else.10: ; preds = %if.then.6
%ig.val42 = load i8, ptr %ig.ptr41, align 1
%cmp.ext43 = zext i8 %ig.val42 to i64
%icmpN = icmp eq i64 %cmp.ext43, 123
br i1 %icmpN, label %if.then.24, label %if.else.25
br i1 %icmpN, label %if.then.23, label %if.else.24
if.merge.11: ; preds = %if.merge.26, %if.merge.13
if.merge.11: ; preds = %if.merge.25, %if.merge.13
br label %if.merge.8
if.then.12: ; preds = %if.then.9
@@ -476,7 +482,7 @@ if.merge.13: ; preds = %if.then.12, %if.the
store i64 %loadN, ptr %allocaN, align 8
br label %if.merge.11
if.then.24: ; preds = %if.else.10
if.then.23: ; preds = %if.else.10
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%callN = call { ptr, i64 } @concat(ptr %0, { ptr, i64 } %loadN, { ptr, i64 } { ptr @str.7, i64 36 })
store { ptr, i64 } %callN, ptr %allocaN, align 8
@@ -504,35 +510,35 @@ if.then.24: ; preds = %if.else.10
store i64 %addN, ptr %allocaN, align 8
%loadN = load i64, ptr %allocaN, align 8
store i64 %loadN, ptr %allocaN, align 8
br label %if.merge.26
br label %if.merge.25
if.else.25: ; preds = %if.else.10
if.else.24: ; preds = %if.else.10
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
store i64 %addN, ptr %allocaN, align 8
br label %if.merge.26
br label %if.merge.25
if.merge.26: ; preds = %if.else.25, %if.then.24
if.merge.25: ; preds = %if.else.24, %if.then.23
br label %if.merge.11
if.then.27: ; preds = %if.else.4
if.then.26: ; preds = %if.else.4
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
%loadN = load { ptr, i64 }, ptr %alloca, align 8
%lenN = extractvalue { ptr, i64 } %loadN, 1
%icmpN = icmp slt i64 %addN, %lenN
br i1 %icmpN, label %if.then.30, label %if.else.31
br i1 %icmpN, label %if.then.29, label %if.else.30
if.else.28: ; preds = %if.else.4
if.else.27: ; preds = %if.else.4
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
store i64 %addN, ptr %allocaN, align 8
br label %if.merge.29
br label %if.merge.28
if.merge.29: ; preds = %if.merge.32, %if.else.28
if.merge.28: ; preds = %if.merge.31, %if.else.27
br label %if.merge.5
if.then.30: ; preds = %if.then.27
if.then.29: ; preds = %if.then.26
%loadN = load { ptr, i64 }, ptr %alloca, align 8
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
@@ -541,18 +547,18 @@ if.then.30: ; preds = %if.then.27
%ig.val106 = load i8, ptr %ig.ptr105, align 1
%cmp.ext107 = zext i8 %ig.val106 to i64
%icmpN = icmp eq i64 %cmp.ext107, 125
br i1 %icmpN, label %if.then.33, label %if.else.34
br i1 %icmpN, label %if.then.32, label %if.else.33
if.else.31: ; preds = %if.then.27
if.else.30: ; preds = %if.then.26
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
store i64 %addN, ptr %allocaN, align 8
br label %if.merge.32
br label %if.merge.31
if.merge.32: ; preds = %if.merge.35, %if.else.31
br label %if.merge.29
if.merge.31: ; preds = %if.merge.34, %if.else.30
br label %if.merge.28
if.then.33: ; preds = %if.then.30
if.then.32: ; preds = %if.then.29
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%callN = call { ptr, i64 } @concat(ptr %0, { ptr, i64 } %loadN, { ptr, i64 } { ptr @str.10, i64 36 })
store { ptr, i64 } %callN, ptr %allocaN, align 8
@@ -580,18 +586,18 @@ if.then.33: ; preds = %if.then.30
store i64 %addN, ptr %allocaN, align 8
%loadN = load i64, ptr %allocaN, align 8
store i64 %loadN, ptr %allocaN, align 8
br label %if.merge.35
br label %if.merge.34
if.else.34: ; preds = %if.then.30
if.else.33: ; preds = %if.then.29
%loadN = load i64, ptr %allocaN, align 8
%addN = add i64 %loadN, 1
store i64 %addN, ptr %allocaN, align 8
br label %if.merge.35
br label %if.merge.34
if.merge.35: ; preds = %if.else.34, %if.then.33
br label %if.merge.32
if.merge.34: ; preds = %if.else.33, %if.then.32
br label %if.merge.31
if.then.36: ; preds = %while.exit.2
if.then.35: ; preds = %while.exit.2
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%callN = call { ptr, i64 } @concat(ptr %0, { ptr, i64 } %loadN, { ptr, i64 } { ptr @str.13, i64 36 })
store { ptr, i64 } %callN, ptr %allocaN, align 8
@@ -614,9 +620,9 @@ if.then.36: ; preds = %while.exit.2
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
%callN = call { ptr, i64 } @concat(ptr %0, { ptr, i64 } %loadN, { ptr, i64 } { ptr @str.15, i64 4 })
store { ptr, i64 } %callN, ptr %allocaN, align 8
br label %if.merge.37
br label %if.merge.36
if.merge.37: ; preds = %if.then.36, %while.exit.2
if.merge.36: ; preds = %if.then.35, %while.exit.2
%loadN = load { ptr, i64 }, ptr %allocaN, align 8
ret { ptr, i64 } %loadN
}