llvm-6502/test/CodeGen/Mips/cconv/arguments-struct.ll
Daniel Sanders d69ec73a46 [mips] Fix passing of small structures for big-endian O32.
Summary:
Like N32/N64, they must be passed in the upper bits of the register.

The new code could be merged with the existing if-statements but I've
refrained from doing this since it will make porting the O32 implementation
to tablegen harder later.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6463


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223148 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-02 20:40:27 +00:00

42 lines
1.9 KiB
LLVM

; RUN: llc -march=mips -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=O32-BE %s
; RUN: llc -march=mipsel -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=O32-LE %s
; RUN-TODO: llc -march=mips64 -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=O32-BE %s
; RUN-TODO: llc -march=mips64el -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=O32-LE %s
; RUN: llc -march=mips64 -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=NEW-BE %s
; RUN: llc -march=mips64el -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM32 --check-prefix=NEW-LE %s
; RUN: llc -march=mips64 -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM64 --check-prefix=NEW-BE %s
; RUN: llc -march=mips64el -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=SYM64 --check-prefix=NEW-LE %s
; Test small structures for all ABI's and byte orders.
;
; N32/N64 are identical in this area so their checks have been combined into
; the 'NEW' prefix (the N stands for New).
@bytes = global [2 x i8] zeroinitializer
define void @s_i8(i8 inreg %a) nounwind {
entry:
store i8 %a, i8* getelementptr inbounds ([2 x i8]* @bytes, i32 0, i32 1)
ret void
}
; ALL-LABEL: s_i8:
; SYM32-DAG: lui [[PTR_HI:\$[0-9]+]], %hi(bytes)
; SYM32-DAG: addiu [[PTR:\$[0-9]+]], [[PTR_HI]], %lo(bytes)
; SYM64-DAG: ld [[PTR:\$[0-9]+]], %got_disp(bytes)(
; O32-BE-DAG: srl [[ARG:\$[0-9]+]], $4, 24
; O32-BE-DAG: sb [[ARG]], 1([[PTR]])
; O32-LE-DAG: sb $4, 1([[PTR]])
; NEW-BE-DAG: dsrl [[ARG:\$[0-9]+]], $4, 56
; NEW-BE-DAG: sb [[ARG]], 1([[PTR]])
; NEW-LE-DAG: sb $4, 1([[PTR]])