94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
// RUN: %clang_cc1 -triple wasm32-unknown-unknown %s -emit-llvm -o - \
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// RUN: | FileCheck %s -check-prefix=WEBASSEMBLY32
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// RUN: %clang_cc1 -triple wasm64-unknown-unknown %s -emit-llvm -o - \
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// RUN: | FileCheck %s -check-prefix=WEBASSEMBLY64
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// Basic argument/attribute tests for WebAssembly
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// WEBASSEMBLY32: define void @f0(i32 %i, i32 %j, i64 %k, double %l, fp128 %m)
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// WEBASSEMBLY64: define void @f0(i32 %i, i64 %j, i64 %k, double %l, fp128 %m)
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void f0(int i, long j, long long k, double l, long double m) {}
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typedef struct {
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int aa;
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int bb;
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} s1;
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// Structs should be passed byval and not split up.
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// WEBASSEMBLY32: define void @f1(%struct.s1* byval align 4 %i)
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// WEBASSEMBLY64: define void @f1(%struct.s1* byval align 4 %i)
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void f1(s1 i) {}
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typedef struct {
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int cc;
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} s2;
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// Single-element structs should be returned as the one element.
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// WEBASSEMBLY32: define i32 @f2()
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// WEBASSEMBLY64: define i32 @f2()
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s2 f2() {
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s2 foo;
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return foo;
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}
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typedef struct {
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int cc;
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int dd;
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} s3;
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// Structs should be returned sret and not simplified by the frontend.
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// WEBASSEMBLY32: define void @f3(%struct.s3* noalias sret %agg.result)
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// WEBASSEMBLY64: define void @f3(%struct.s3* noalias sret %agg.result)
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s3 f3() {
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s3 foo;
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return foo;
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}
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// WEBASSEMBLY32: define void @f4(i64 %i)
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// WEBASSEMBLY64: define void @f4(i64 %i)
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void f4(long long i) {}
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// i8/i16 should be signext, i32 and higher should not.
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// WEBASSEMBLY32: define void @f5(i8 signext %a, i16 signext %b)
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// WEBASSEMBLY64: define void @f5(i8 signext %a, i16 signext %b)
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void f5(char a, short b) {}
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// WEBASSEMBLY32: define void @f6(i8 zeroext %a, i16 zeroext %b)
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// WEBASSEMBLY64: define void @f6(i8 zeroext %a, i16 zeroext %b)
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void f6(unsigned char a, unsigned short b) {}
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enum my_enum {
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ENUM1,
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ENUM2,
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ENUM3,
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};
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// Enums should be treated as the underlying i32.
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// WEBASSEMBLY32: define void @f7(i32 %a)
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// WEBASSEMBLY64: define void @f7(i32 %a)
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void f7(enum my_enum a) {}
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enum my_big_enum {
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ENUM4 = 0xFFFFFFFFFFFFFFFF,
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};
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// Big enums should be treated as the underlying i64.
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// WEBASSEMBLY32: define void @f8(i64 %a)
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// WEBASSEMBLY64: define void @f8(i64 %a)
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void f8(enum my_big_enum a) {}
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union simple_union {
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int a;
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char b;
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};
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// Unions should be passed as byval structs.
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// WEBASSEMBLY32: define void @f9(%union.simple_union* byval align 4 %s)
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// WEBASSEMBLY64: define void @f9(%union.simple_union* byval align 4 %s)
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void f9(union simple_union s) {}
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typedef struct {
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int b4 : 4;
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int b3 : 3;
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int b8 : 8;
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} bitfield1;
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// Bitfields should be passed as byval structs.
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// WEBASSEMBLY32: define void @f10(%struct.bitfield1* byval align 4 %bf1)
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// WEBASSEMBLY64: define void @f10(%struct.bitfield1* byval align 4 %bf1)
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void f10(bitfield1 bf1) {}
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