| Oliver Stannard | dc2854c | 2015-09-03 12:40:58 +0000 | [diff] [blame] | 1 | // 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 |
| 2 | // 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 |
| 3 | |
| 4 | __fp16 g; |
| 5 | |
| 6 | void t1(__fp16 a) { g = a; } |
| 7 | // SOFT: define void @t1(i32 [[PARAM:%.*]]) |
| 8 | // SOFT: [[TRUNC:%.*]] = trunc i32 [[PARAM]] to i16 |
| 9 | // HARD: define arm_aapcs_vfpcc void @t1(float [[PARAM:%.*]]) |
| 10 | // HARD: [[BITCAST:%.*]] = bitcast float [[PARAM]] to i32 |
| 11 | // HARD: [[TRUNC:%.*]] = trunc i32 [[BITCAST]] to i16 |
| 12 | // CHECK: store i16 [[TRUNC]], i16* bitcast (half* @g to i16*) |
| 13 | |
| 14 | __fp16 t2() { return g; } |
| 15 | // SOFT: define i32 @t2() |
| 16 | // HARD: define arm_aapcs_vfpcc float @t2() |
| 17 | // CHECK: [[LOAD:%.*]] = load i16, i16* bitcast (half* @g to i16*) |
| 18 | // CHECK: [[ZEXT:%.*]] = zext i16 [[LOAD]] to i32 |
| 19 | // SOFT: ret i32 [[ZEXT]] |
| 20 | // HARD: [[BITCAST:%.*]] = bitcast i32 [[ZEXT]] to float |
| 21 | // HARD: ret float [[BITCAST]] |