[PATCH] D113658: [fir] Add !fir.len type conversion

[Valentin Clement via Phabricator via llvm-commits]

clementval created this revision.
clementval added reviewers: jeanPerier, svedanayagam, sscalpone, kiranchandramohan, jdoerfert, schweitz, pmccormick, rovka, AlexisPerry, PeteSteinfeld, awarzynski.
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This patch adds the !fir.len type conversion. The type is converted
to the a 32 bits integer.

This patch is part of the upstreaming effort from fir-dev branch.

Co-authored-by: Eric Schweitz <eschweitz at nvidia.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113658

Files:
  flang/lib/Optimizer/CodeGen/TypeConverter.h
  flang/test/Fir/types-to-llvm.fir


Index: flang/test/Fir/types-to-llvm.fir
===================================================================
--- flang/test/Fir/types-to-llvm.fir
+++ flang/test/Fir/types-to-llvm.fir
@@ -131,3 +131,11 @@
 func private @foo5(%arg0: !fir.complex<16>)
 // CHECK-LABEL: foo5
 // CHECK-SAME: !llvm.struct<(f128, f128)>)
+
+// -----
+
+// Test `!fir.len` conversion.
+
+func private @foo0(%arg0: !fir.len)
+// CHECK-LABEL: foo0
+// CHECK-SAME: i32
Index: flang/lib/Optimizer/CodeGen/TypeConverter.h
===================================================================
--- flang/lib/Optimizer/CodeGen/TypeConverter.h
+++ flang/lib/Optimizer/CodeGen/TypeConverter.h
@@ -59,6 +59,9 @@
         [&](fir::PointerType pointer) { return convertPointerLike(pointer); });
     addConversion(
         [&](fir::RecordType derived) { return convertRecordType(derived); });
+    addConversion([&](fir::LenType field) {
+      return mlir::IntegerType::get(field.getContext(), 32);
+    });
     addConversion(
         [&](fir::ComplexType cmplx) { return convertComplexType(cmplx); });
     addConversion(


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