From 6e1b2e36a5a8e27b07c9c3061621fe48d11fc031 Mon Sep 17 00:00:00 2001 From: Dale Johannesen Date: Sat, 14 Feb 2009 00:19:28 +0000 Subject: [PATCH] Testcase for llvm-gcc 64510. llvm-svn: 64511 --- .../FrontendC/2009-02-13-zerosize-union-field.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 llvm/test/FrontendC/2009-02-13-zerosize-union-field.c diff --git a/llvm/test/FrontendC/2009-02-13-zerosize-union-field.c b/llvm/test/FrontendC/2009-02-13-zerosize-union-field.c new file mode 100644 index 000000000000..044cbd5a5567 --- /dev/null +++ b/llvm/test/FrontendC/2009-02-13-zerosize-union-field.c @@ -0,0 +1,13 @@ +// RUN: %llvmgcc %s -m32 -S -o - | grep {i32 1} | count 1 +// RUN: %llvmgcc %s -m32 -S -o - | grep {i32 4} | count 2 +// Every printf has 'i32 0' for the GEP of the string; no point counting those. +typedef unsigned int Foo __attribute__((aligned(32))); +typedef union{Foo:0;}a; +typedef union{int x; Foo:0;}b; +extern int printf(const char*, ...); +main() { + printf("%ld\n", sizeof(a)); + printf("%ld\n", __alignof__(a)); + printf("%ld\n", sizeof(b)); + printf("%ld\n", __alignof__(b)); +}