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74020868ee
PNaCl and Emscripten can both handle va_arg IR instructions with struct type. Also add a test to cover generating a va_arg IR instruction from va_arg in C on le32 (as already handled by VisitVAArgExpr() in CGExprScalar.cpp), which was not covered by a test before. (This fixes https://code.google.com/p/nativeclient/issues/detail?id=2381) Differential Revision: http://llvm-reviews.chandlerc.com/D2539 llvm-svn: 199830
29 lines
697 B
C
29 lines
697 B
C
// RUN: %clang_cc1 -triple le32-unknown-nacl -emit-llvm -o - %s | FileCheck %s
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#include <stdarg.h>
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int get_int(va_list *args) {
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return va_arg(*args, int);
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}
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// CHECK: define i32 @get_int
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// CHECK: [[RESULT:%[a-z_0-9]+]] = va_arg {{.*}}, i32{{$}}
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// CHECK: ret i32 [[RESULT]]
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struct Foo {
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int x;
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};
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struct Foo dest;
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void get_struct(va_list *args) {
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dest = va_arg(*args, struct Foo);
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}
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// CHECK: define void @get_struct
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// CHECK: [[RESULT:%[a-z_0-9]+]] = va_arg {{.*}}, %struct.Foo{{$}}
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// CHECK: store %struct.Foo [[RESULT]], %struct.Foo* @dest
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void skip_struct(va_list *args) {
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va_arg(*args, struct Foo);
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}
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// CHECK: define void @skip_struct
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// CHECK: va_arg {{.*}}, %struct.Foo{{$}}
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