1 files changed, 53 insertions, 0 deletions
diff --git a/test/CodeGen/riscv32-ilp32-ilp32f-abi.c b/test/CodeGen/riscv32-ilp32-ilp32f-abi.c
new file mode 100644
index 0000000000..0c2f0791e3
--- /dev/null
+++ b/test/CodeGen/riscv32-ilp32-ilp32f-abi.c
@@ -0,0 +1,53 @@
+// RUN: %clang_cc1 -triple riscv32 -emit-llvm %s -o - | FileCheck %s
+
+// This file contains test cases that will have the same output for the ilp32
+// and ilp32f ABIs.
+
+#include <stddef.h>
+#include <stdint.h>
+
+struct tiny {
+  uint8_t a, b, c, d;
+};
+
+struct small {
+  int32_t a, *b;
+};
+
+struct small_aligned {
+  int64_t a;
+};
+
+struct large {
+  int32_t a, b, c, d;
+};
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+// CHECK-LABEL: define i32 @f_scalar_stack_1(i32 %a, i64 %b, i32 %c, double %d, fp128 %e, i8 zeroext %f, i8 %g, i8 %h)
+int f_scalar_stack_1(int32_t a, int64_t b, int32_t c, double d, long double e,
+                     uint8_t f, int8_t g, uint8_t h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+// CHECK-LABEL: define void @f_scalar_stack_2(%struct.large* noalias sret %agg.result, i32 %a, i64 %b, i64 %c, fp128 %d, i8 zeroext %e, i8 %f, i8 %g)
+struct large f_scalar_stack_2(int32_t a, int64_t b, int64_t c, long double d,
+                              uint8_t e, int8_t f, uint8_t g) {
+  return (struct large){a, e, f, g};
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+// CHECK-LABEL: define void @f_scalar_stack_3(double %a, i64 %b, double %c, i64 %d, i32 %e, i64 %f, i32 %g, double %h, fp128 %i)
+void f_scalar_stack_3(double a, int64_t b, double c, int64_t d, int e,
+                      int64_t f, int32_t g, double h, long double i) {}
+
+// CHECK-LABEL: define void @f_agg_stack(double %a, i64 %b, double %c, i64 %d, i32 %e.coerce, [2 x i32] %f.coerce, i64 %g.coerce, %struct.large* %h)
+void f_agg_stack(double a, int64_t b, double c, int64_t d, struct tiny e,
+                 struct small f, struct small_aligned g, struct large h) {}