| // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi soft -fallow-half-arguments-and-returns -emit-llvm -o - -O1 %s | FileCheck %s --check-prefix=CHECK --check-prefix=SOFT |
| // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi hard -fallow-half-arguments-and-returns -emit-llvm -o - -O1 %s | FileCheck %s --check-prefix=CHECK --check-prefix=HARD |
| // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi soft -fnative-half-arguments-and-returns -emit-llvm -o - -O1 %s | FileCheck %s --check-prefix=NATIVE |
| |
| __fp16 g; |
| |
| void t1(__fp16 a) { g = a; } |
| // SOFT: define void @t1(i32 [[PARAM:%.*]]) |
| // SOFT: [[TRUNC:%.*]] = trunc i32 [[PARAM]] to i16 |
| // HARD: define arm_aapcs_vfpcc void @t1(float [[PARAM:%.*]]) |
| // HARD: [[BITCAST:%.*]] = bitcast float [[PARAM]] to i32 |
| // HARD: [[TRUNC:%.*]] = trunc i32 [[BITCAST]] to i16 |
| // CHECK: store i16 [[TRUNC]], i16* bitcast (half* @g to i16*) |
| // NATIVE: define void @t1(half [[PARAM:%.*]]) |
| // NATIVE: store half [[PARAM]], half* @g |
| |
| __fp16 t2() { return g; } |
| // SOFT: define i32 @t2() |
| // HARD: define arm_aapcs_vfpcc float @t2() |
| // NATIVE: define half @t2() |
| // CHECK: [[LOAD:%.*]] = load i16, i16* bitcast (half* @g to i16*) |
| // CHECK: [[ZEXT:%.*]] = zext i16 [[LOAD]] to i32 |
| // SOFT: ret i32 [[ZEXT]] |
| // HARD: [[BITCAST:%.*]] = bitcast i32 [[ZEXT]] to float |
| // HARD: ret float [[BITCAST]] |
| // NATIVE: [[LOAD:%.*]] = load half, half* @g |
| // NATIVE: ret half [[LOAD]] |
| |
| _Float16 h; |
| |
| void t3(_Float16 a) { h = a; } |
| // SOFT: define void @t3(i32 [[PARAM:%.*]]) |
| // SOFT: [[TRUNC:%.*]] = trunc i32 [[PARAM]] to i16 |
| // HARD: define arm_aapcs_vfpcc void @t3(float [[PARAM:%.*]]) |
| // HARD: [[BITCAST:%.*]] = bitcast float [[PARAM]] to i32 |
| // HARD: [[TRUNC:%.*]] = trunc i32 [[BITCAST]] to i16 |
| // CHECK: store i16 [[TRUNC]], i16* bitcast (half* @h to i16*) |
| // NATIVE: define void @t3(half [[PARAM:%.*]]) |
| // NATIVE: store half [[PARAM]], half* @h |
| |
| _Float16 t4() { return h; } |
| // SOFT: define i32 @t4() |
| // HARD: define arm_aapcs_vfpcc float @t4() |
| // NATIVE: define half @t4() |
| // CHECK: [[LOAD:%.*]] = load i16, i16* bitcast (half* @h to i16*) |
| // CHECK: [[ZEXT:%.*]] = zext i16 [[LOAD]] to i32 |
| // SOFT: ret i32 [[ZEXT]] |
| // HARD: [[BITCAST:%.*]] = bitcast i32 [[ZEXT]] to float |
| // HARD: ret float [[BITCAST]] |
| // NATIVE: [[LOAD:%.*]] = load half, half* @h |
| // NATIVE: ret half [[LOAD]] |
