2015-01-26 17:33:46 +00:00
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
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; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
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2014-10-07 09:29:59 +00:00
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2015-01-26 17:33:46 +00:00
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; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
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; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
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2014-10-07 09:29:59 +00:00
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; Test return of {fp128} agrees with de-facto N32/N64 ABI.
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@struct_fp128 = global {fp128} zeroinitializer
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define inreg {fp128} @ret_struct_fp128() nounwind {
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entry:
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2015-02-27 21:17:42 +00:00
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%0 = load volatile {fp128}, {fp128}* @struct_fp128
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2014-10-07 09:29:59 +00:00
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ret {fp128} %0
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}
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; ALL-LABEL: ret_struct_fp128:
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; O32 generates different IR so we don't test it here. It returns the struct
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; indirectly.
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; Contrary to the N32/N64 ABI documentation, a struct containing a long double
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; is returned in $f0, and $f1 instead of the usual $f0, and $f2. This is to
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; match the de facto ABI as implemented by GCC.
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; N32-DAG: lui [[R1:\$[0-9]+]], %hi(struct_fp128)
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; N32-DAG: ld [[R2:\$[0-9]+]], %lo(struct_fp128)([[R1]])
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; N32-DAG: dmtc1 [[R2]], $f0
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; N32-DAG: addiu [[R3:\$[0-9]+]], [[R1]], %lo(struct_fp128)
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; N32-DAG: ld [[R4:\$[0-9]+]], 8([[R3]])
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; N32-DAG: dmtc1 [[R4]], $f1
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; N64-DAG: ld [[R1:\$[0-9]+]], %got_disp(struct_fp128)($1)
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; N64-DAG: ld [[R2:\$[0-9]+]], 0([[R1]])
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; N64-DAG: dmtc1 [[R2]], $f0
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; N64-DAG: ld [[R4:\$[0-9]+]], 8([[R1]])
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; N64-DAG: dmtc1 [[R4]], $f1
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