From 4c5cb9c1da64f9cf7487bdf47e0bcee97d4b86aa Mon Sep 17 00:00:00 2001 From: Tim Northover Date: Mon, 2 Nov 2015 19:32:23 +0000 Subject: Fix va_arg on watchOS. As in other contexts, alignments can go up to 16 bytes in a va_list. llvm-svn: 251821 --- clang/test/CodeGen/armv7k-abi.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'clang/test') diff --git a/clang/test/CodeGen/armv7k-abi.c b/clang/test/CodeGen/armv7k-abi.c index 93c0f0ca259..9b57de8727b 100644 --- a/clang/test/CodeGen/armv7k-abi.c +++ b/clang/test/CodeGen/armv7k-abi.c @@ -1,4 +1,6 @@ -// RUN: %clang_cc1 -triple thumbv7k-apple-watchos2.0 -target-abi aapcs16 %s -o - -emit-llvm | FileCheck %s +// RUN: %clang_cc1 -triple thumbv7k-apple-watchos2.0 -target-abi aapcs16 -target-cpu cortex-a7 %s -o - -emit-llvm | FileCheck %s + +#include // Make sure 64 and 128 bit types are naturally aligned by the v7k ABI: @@ -80,9 +82,12 @@ typedef struct { // CHECK: define [2 x i32] @return_oddly_sized_struct() OddlySizedStruct return_oddly_sized_struct() {} -// CHECK: define double @test_va_arg(i8* %l) -// CHECK: load double, double* -double test_va_arg(__builtin_va_list l) { - return __builtin_va_arg(l, double); +// CHECK: define <4 x float> @test_va_arg_vec(i8* %l) +// CHECK: [[ALIGN_TMP:%.*]] = add i32 {{%.*}}, 15 +// CHECK: [[ALIGNED:%.*]] = and i32 [[ALIGN_TMP]], -16 +// CHECK: [[ALIGNED_I8:%.*]] = inttoptr i32 [[ALIGNED]] to i8* +// CHECK: [[ALIGNED_VEC:%.*]] = bitcast i8* [[ALIGNED_I8]] to <4 x float> +// CHECK: load <4 x float>, <4 x float>* [[ALIGNED_VEC]], align 16 +float32x4_t test_va_arg_vec(__builtin_va_list l) { + return __builtin_va_arg(l, float32x4_t); } - -- cgit v1.2.3