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llvm-project/clang/test/CodeGen/mips-zero-sized-struct.c

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Remove compile time PreserveName in favor of a runtime cc1 -discard-value-names option Summary: This flag is enabled by default in the driver when NDEBUG is set. It is forwarded on the LLVMContext to discard all value names (but GlobalValue) for performance purpose. This an improved version of D18024 Reviewers: echristo, chandlerc Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D18127 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 263394
2016-03-14 05:05:23 +08:00
// RUN: %clang_cc1 -triple mips-unknown-linux-gnu -S -emit-llvm -o - %s | FileCheck -check-prefix=O32 %s
// RUN: %clang_cc1 -triple mipsel-unknown-linux-gnu -S -emit-llvm -o - %s | FileCheck -check-prefix=O32 %s
// RUN: %clang_cc1 -triple mips64-unknown-linux-gnu -S -emit-llvm -o - %s -target-abi n32 | FileCheck -check-prefix=N32 %s
// RUN: %clang_cc1 -triple mips64el-unknown-linux-gnu -S -emit-llvm -o - %s -target-abi n32 | FileCheck -check-prefix=N32 %s
// RUN: %clang_cc1 -triple mips64-unknown-linux-gnu -S -emit-llvm -o - %s | FileCheck -check-prefix=N64 %s
// RUN: %clang_cc1 -triple mips64el-unknown-linux-gnu -S -emit-llvm -o - %s | FileCheck -check-prefix=N64 %s
[mips] Zero-sized structs cannot be ignored in MipsABIInfo::classifyReturnType() for O32 Summary: They are returned indirectly which causes the other arguments to move to the next argument slot. With this, utils/ABITest does not discover any failing cases in the first 500 attempts on big/little endian for O32. Previously some of these failed. Also tested N32/N64 little endian (big endian has other known issues) with no issues. Reviewers: atanasyan Reviewed By: atanasyan Subscribers: atanasyan, cfe-commits Differential Revision: http://reviews.llvm.org/D4811 llvm-svn: 217147
2014-09-04 21:28:14 +08:00
// O32: define void @fn28(%struct.T2* noalias sret %agg.result, i8 signext %arg0)
// N32: define void @fn28(i8 signext %arg0)
// N64: define void @fn28(i8 signext %arg0)
typedef struct T2 { } T2;
T2 T2_retval;
T2 fn28(char arg0) {
return T2_retval;
}