1; RUN: llc -march=mips < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s 2; RUN: llc -march=mipsel < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s 3 4; RUN-TODO: llc -march=mips64 -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s 5; RUN-TODO: llc -march=mips64el -target-abi o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s 6 7; RUN: llc -march=mips64 -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s 8; RUN: llc -march=mips64el -target-abi n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s 9 10; RUN: llc -march=mips64 -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s 11; RUN: llc -march=mips64el -target-abi n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s 12 13; Test that O32 correctly reserved space for the four arguments, even when 14; there aren't any as per section 5 of MD00305 (MIPS ABIs Described). 15 16declare void @foo() nounwind; 17 18define void @reserved_space() nounwind { 19entry: 20 tail call void @foo() 21 ret void 22} 23 24; ALL-LABEL: reserved_space: 25; O32: addiu $sp, $sp, -24 26; O32: sw $ra, 20($sp) 27; O32: lw $ra, 20($sp) 28; O32: addiu $sp, $sp, 24 29; Despite pointers being 32-bit wide on N32, the return pointer is saved as a 30; 64-bit pointer. I've yet to find a documentation reference for this quirk but 31; this behaviour matches GCC so I have considered it to be correct. 32; N32: addiu $sp, $sp, -16 33; N32: sd $ra, 8($sp) 34; N32: ld $ra, 8($sp) 35; N32: addiu $sp, $sp, 16 36; N64: daddiu $sp, $sp, -16 37; N64: sd $ra, 8($sp) 38; N64: ld $ra, 8($sp) 39; N64: daddiu $sp, $sp, 16 40