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Diffstat (limited to 'test/CodeGen/riscv32-ilp32-abi.c')
-rw-r--r-- | test/CodeGen/riscv32-ilp32-abi.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/test/CodeGen/riscv32-ilp32-abi.c b/test/CodeGen/riscv32-ilp32-abi.c new file mode 100644 index 0000000000..59f0bb5683 --- /dev/null +++ b/test/CodeGen/riscv32-ilp32-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 different output for ilp32 vs +// the other 32-bit 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, float %c, double %d, fp128 %e, i8 zeroext %f, i8 %g, i8 %h) +int f_scalar_stack_1(int32_t a, int64_t b, float 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, float %a, i64 %b, double %c, fp128 %d, i8 zeroext %e, i8 %f, i8 %g) +struct large f_scalar_stack_2(float a, int64_t b, double 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, float %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, float 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) {} |