1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ 3; RUN: | FileCheck -check-prefix=RV32 %s 4; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \ 5; RUN: | FileCheck -check-prefix=RV64 %s 6 7define fastcc i32 @callee(<16 x i32> %A) nounwind { 8; RV32-LABEL: callee: 9; RV32: # %bb.0: 10; RV32-NEXT: ret 11; 12; RV64-LABEL: callee: 13; RV64: # %bb.0: 14; RV64-NEXT: ret 15 %B = extractelement <16 x i32> %A, i32 0 16 ret i32 %B 17} 18 19; With the fastcc, arguments will be passed by a0-a7 and t2-t6. 20; The rest will be pushed on the stack. 21define i32 @caller(<16 x i32> %A) nounwind { 22; RV32-LABEL: caller: 23; RV32: # %bb.0: 24; RV32-NEXT: addi sp, sp, -32 25; RV32-NEXT: sw ra, 28(sp) 26; RV32-NEXT: sw s0, 24(sp) 27; RV32-NEXT: lw t0, 0(a0) 28; RV32-NEXT: lw a1, 4(a0) 29; RV32-NEXT: lw a2, 8(a0) 30; RV32-NEXT: lw a3, 12(a0) 31; RV32-NEXT: lw a4, 16(a0) 32; RV32-NEXT: lw a5, 20(a0) 33; RV32-NEXT: lw a6, 24(a0) 34; RV32-NEXT: lw a7, 28(a0) 35; RV32-NEXT: lw t2, 32(a0) 36; RV32-NEXT: lw t3, 36(a0) 37; RV32-NEXT: lw t4, 40(a0) 38; RV32-NEXT: lw t5, 44(a0) 39; RV32-NEXT: lw t6, 48(a0) 40; RV32-NEXT: lw t1, 52(a0) 41; RV32-NEXT: lw s0, 56(a0) 42; RV32-NEXT: lw a0, 60(a0) 43; RV32-NEXT: sw a0, 8(sp) 44; RV32-NEXT: sw s0, 4(sp) 45; RV32-NEXT: sw t1, 0(sp) 46; RV32-NEXT: mv a0, t0 47; RV32-NEXT: call callee 48; RV32-NEXT: lw s0, 24(sp) 49; RV32-NEXT: lw ra, 28(sp) 50; RV32-NEXT: addi sp, sp, 32 51; RV32-NEXT: ret 52; 53; RV64-LABEL: caller: 54; RV64: # %bb.0: 55; RV64-NEXT: addi sp, sp, -48 56; RV64-NEXT: sd ra, 40(sp) 57; RV64-NEXT: sd s0, 32(sp) 58; RV64-NEXT: ld t0, 0(a0) 59; RV64-NEXT: ld a1, 8(a0) 60; RV64-NEXT: ld a2, 16(a0) 61; RV64-NEXT: ld a3, 24(a0) 62; RV64-NEXT: ld a4, 32(a0) 63; RV64-NEXT: ld a5, 40(a0) 64; RV64-NEXT: ld a6, 48(a0) 65; RV64-NEXT: ld a7, 56(a0) 66; RV64-NEXT: ld t2, 64(a0) 67; RV64-NEXT: ld t3, 72(a0) 68; RV64-NEXT: ld t4, 80(a0) 69; RV64-NEXT: ld t5, 88(a0) 70; RV64-NEXT: ld t6, 96(a0) 71; RV64-NEXT: ld t1, 104(a0) 72; RV64-NEXT: ld s0, 112(a0) 73; RV64-NEXT: ld a0, 120(a0) 74; RV64-NEXT: sd a0, 16(sp) 75; RV64-NEXT: sd s0, 8(sp) 76; RV64-NEXT: sd t1, 0(sp) 77; RV64-NEXT: mv a0, t0 78; RV64-NEXT: call callee 79; RV64-NEXT: ld s0, 32(sp) 80; RV64-NEXT: ld ra, 40(sp) 81; RV64-NEXT: addi sp, sp, 48 82; RV64-NEXT: ret 83 %C = call fastcc i32 @callee(<16 x i32> %A) 84 ret i32 %C 85} 86