| ; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefixes=ALL,N32 %s |
| ; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefixes=ALL,N32 %s |
| |
| ; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefixes=ALL,N64 %s |
| ; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefixes=ALL,N64 %s |
| |
| ; Test return of {fp128} agrees with de-facto N32/N64 ABI. |
| |
| @struct_fp128 = global {fp128} zeroinitializer |
| |
| define inreg {fp128} @ret_struct_fp128() nounwind { |
| entry: |
| %0 = load volatile {fp128}, {fp128}* @struct_fp128 |
| ret {fp128} %0 |
| } |
| |
| ; ALL-LABEL: ret_struct_fp128: |
| |
| ; O32 generates different IR so we don't test it here. It returns the struct |
| ; indirectly. |
| |
| ; Contrary to the N32/N64 ABI documentation, a struct containing a long double |
| ; is returned in $f0, and $f1 instead of the usual $f0, and $f2. This is to |
| ; match the de facto ABI as implemented by GCC. |
| ; N32-DAG: lui [[R1:\$[0-9]+]], %hi(struct_fp128) |
| ; N32-DAG: ld [[R2:\$[0-9]+]], %lo(struct_fp128)([[R1]]) |
| ; N32-DAG: dmtc1 [[R2]], $f0 |
| ; N32-DAG: addiu [[R3:\$[0-9]+]], [[R1]], %lo(struct_fp128) |
| ; N32-DAG: ld [[R4:\$[0-9]+]], 8([[R3]]) |
| ; N32-DAG: dmtc1 [[R4]], $f1 |
| |
| ; N64-DAG: ld [[R1:\$[0-9]+]], %got_disp(struct_fp128)($1) |
| ; N64-DAG: ld [[R2:\$[0-9]+]], 0([[R1]]) |
| ; N64-DAG: dmtc1 [[R2]], $f0 |
| ; N64-DAG: ld [[R4:\$[0-9]+]], 8([[R1]]) |
| ; N64-DAG: dmtc1 [[R4]], $f1 |
