Dana Jansens 9290ee2bcf Use unsigned arithmetic builtins for UInt(N) operations (#4740) ...

We were mistakenly using the signed builtins, which produce the same
lowering for add/multiply right now, but don't for division and modulus.

When manually flipping SignedOverflowIsUB on, the signed version of add
gains the nsw (no signed wrap) flag, while the unsigned version
(correctly after this change) does not:
```
// CHECK:STDOUT: define i32 @_Cadd_i32.Main(i32 %a, i32 %b) !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %int.sadd = add nsw i32 %a, %b, !dbg !7
// CHECK:STDOUT:   ret i32 %int.sadd, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: define i32 @_Cadd_u32.Main(i32 %a, i32 %b) !dbg !9 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %int.uadd = add i32 %a, %b, !dbg !10
// CHECK:STDOUT:   ret i32 %int.uadd, !dbg !11
// CHECK:STDOUT: }
```

2024-12-26 00:36:33 +00:00

..

prelude

Use unsigned arithmetic builtins for UInt(N) operations (#4740)

2024-12-26 00:36:33 +00:00

BUILD

Add solutions for advent of code 2024 day 1 to examples/. (#4673)

2024-12-17 00:47:51 +00:00

io.carbon

Add solutions for advent of code 2024 day 1 to examples/. (#4673)

2024-12-17 00:47:51 +00:00

prelude.carbon

Add solutions for advent of code 2024 day 1 to examples/. (#4673)

2024-12-17 00:47:51 +00:00