[all-commits] [llvm/llvm-project] 73e2b0: [CIR][ABI] Add _BitInt flag to IntType (#188113)

[adams381 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 73e2b0e64186e2386d777e936c92bb25a995a0f4
      https://github.com/llvm/llvm-project/commit/73e2b0e64186e2386d777e936c92bb25a995a0f4
  Author: adams381 <adams at nvidia.com>
  Date:   2026-04-08 (Wed, 08 Apr 2026)

  Changed paths:
    M clang/include/clang/CIR/Dialect/IR/CIRTypes.td
    M clang/lib/CIR/CodeGen/CIRGenTypes.cpp
    M clang/lib/CIR/Dialect/IR/CIRTypes.cpp
    A clang/test/CIR/CodeGen/bitint.c
    M clang/test/CIR/CodeGenBuiltins/builtins-overflow.cpp
    A clang/test/CIR/IR/bitint.cir
    M clang/test/CIR/global-var-simple.cpp

  Log Message:
  -----------
  [CIR][ABI] Add _BitInt flag to IntType (#188113)

Add an optional `bitint` parameter to `cir::IntType` so CIR can
distinguish `_BitInt(N)` from builtin integer types like `__int128`.
Both lower to the same LLVM integer type, but they have different ABI
rules (alignment, passing convention) on x86_64.

The flag is set during CIRGen for `Type::BitInt`, printed/parsed as
`!cir.int<s, 128, bitint>`, and excluded from `isFundamental()`.
Existing 2-arg `IntType::get()` calls continue to work via a default
parameter.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications