Mercurial > hg > CbC > CbC_llvm
view clang/test/CodeGen/arm-vaarg-align.c @ 207:2e18cbf3894f
LLVM12
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Tue, 08 Jun 2021 06:07:14 +0900 |
parents | 1d019706d866 |
children | 1f2b6ac9f198 |
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// REQUIRES: arm-registered-target // RUN: %clang_cc1 -triple arm -target-abi aapcs %s -emit-llvm -o - | FileCheck -check-prefix=AAPCS %s // RUN: %clang_cc1 -triple arm -target-abi apcs-gnu %s -emit-llvm -o - | FileCheck -check-prefix=APCS-GNU %s /* * Check that va_arg accesses stack according to ABI alignment * long long and double require 8-byte alignment under AAPCS * however, they only require 4-byte alignment under APCS */ long long t1(int i, ...) { // AAPCS: t1 // APCS-GNU: t1 __builtin_va_list ap; __builtin_va_start(ap, i); // AAPCS: add i32 %{{.*}} 7 // AAPCS: and i32 %{{.*}} -8 // APCS-GNU-NOT: add i32 %{{.*}} 7 // APCS-GNU-NOT: and i32 %{{.*}} -8 long long ll = __builtin_va_arg(ap, long long); __builtin_va_end(ap); return ll; } double t2(int i, ...) { // AAPCS: t2 // APCS-GNU: t2 __builtin_va_list ap; __builtin_va_start(ap, i); // AAPCS: add i32 %{{.*}} 7 // AAPCS: and i32 %{{.*}} -8 // APCS-GNU-NOT: add i32 %{{.*}} 7 // APCS-GNU-NOT: and i32 %{{.*}} -8 double ll = __builtin_va_arg(ap, double); __builtin_va_end(ap); return ll; }