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|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 < %s \
; RUN: | FileCheck -check-prefix=RV32 %s
; RUN: llc -mtriple=riscv64 < %s \
; RUN: | FileCheck -check-prefix=RV64 %s
; RUN: llc -mtriple=riscv32 -frame-pointer=all -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV32-WITHFP %s
; RUN: llc -mtriple=riscv64 -frame-pointer=all -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV64-WITHFP %s
define void @trivial() {
; RV32-LABEL: trivial:
; RV32: # %bb.0:
; RV32-NEXT: ret
;
; RV64-LABEL: trivial:
; RV64: # %bb.0:
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: trivial:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -4
; RV32-WITHFP-NEXT: .cfi_offset s0, -8
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: trivial:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -8
; RV64-WITHFP-NEXT: .cfi_offset s0, -16
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
ret void
}
define void @stack_alloc(i32 signext %size) {
; RV32-LABEL: stack_alloc:
; RV32: # %bb.0: # %entry
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: .cfi_def_cfa_offset 16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT: .cfi_offset ra, -4
; RV32-NEXT: .cfi_offset s0, -8
; RV32-NEXT: addi s0, sp, 16
; RV32-NEXT: .cfi_def_cfa s0, 0
; RV32-NEXT: addi a0, a0, 15
; RV32-NEXT: andi a0, a0, -16
; RV32-NEXT: sub a0, sp, a0
; RV32-NEXT: mv sp, a0
; RV32-NEXT: call callee_with_args@plt
; RV32-NEXT: addi sp, s0, -16
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; RV64-LABEL: stack_alloc:
; RV64: # %bb.0: # %entry
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: .cfi_def_cfa_offset 16
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-NEXT: .cfi_offset ra, -8
; RV64-NEXT: .cfi_offset s0, -16
; RV64-NEXT: addi s0, sp, 16
; RV64-NEXT: .cfi_def_cfa s0, 0
; RV64-NEXT: slli a0, a0, 32
; RV64-NEXT: srli a0, a0, 32
; RV64-NEXT: addi a0, a0, 15
; RV64-NEXT: andi a0, a0, -16
; RV64-NEXT: sub a0, sp, a0
; RV64-NEXT: mv sp, a0
; RV64-NEXT: call callee_with_args@plt
; RV64-NEXT: addi sp, s0, -16
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: stack_alloc:
; RV32-WITHFP: # %bb.0: # %entry
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -4
; RV32-WITHFP-NEXT: .cfi_offset s0, -8
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV32-WITHFP-NEXT: addi a0, a0, 15
; RV32-WITHFP-NEXT: andi a0, a0, -16
; RV32-WITHFP-NEXT: sub a0, sp, a0
; RV32-WITHFP-NEXT: mv sp, a0
; RV32-WITHFP-NEXT: call callee_with_args@plt
; RV32-WITHFP-NEXT: addi sp, s0, -16
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: stack_alloc:
; RV64-WITHFP: # %bb.0: # %entry
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -8
; RV64-WITHFP-NEXT: .cfi_offset s0, -16
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV64-WITHFP-NEXT: slli a0, a0, 32
; RV64-WITHFP-NEXT: srli a0, a0, 32
; RV64-WITHFP-NEXT: addi a0, a0, 15
; RV64-WITHFP-NEXT: andi a0, a0, -16
; RV64-WITHFP-NEXT: sub a0, sp, a0
; RV64-WITHFP-NEXT: mv sp, a0
; RV64-WITHFP-NEXT: call callee_with_args@plt
; RV64-WITHFP-NEXT: addi sp, s0, -16
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
entry:
%0 = alloca i8, i32 %size, align 16
call void @callee_with_args(i8* nonnull %0)
ret void
}
define void @branch_and_tail_call(i1 %a) {
; RV32-LABEL: branch_and_tail_call:
; RV32: # %bb.0:
; RV32-NEXT: andi a0, a0, 1
; RV32-NEXT: beqz a0, .LBB2_2
; RV32-NEXT: # %bb.1: # %blue_pill
; RV32-NEXT: tail callee1@plt
; RV32-NEXT: .LBB2_2: # %red_pill
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: .cfi_def_cfa_offset 16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: .cfi_offset ra, -4
; RV32-NEXT: call callee2@plt
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: ret
;
; RV64-LABEL: branch_and_tail_call:
; RV64: # %bb.0:
; RV64-NEXT: andi a0, a0, 1
; RV64-NEXT: beqz a0, .LBB2_2
; RV64-NEXT: # %bb.1: # %blue_pill
; RV64-NEXT: tail callee1@plt
; RV64-NEXT: .LBB2_2: # %red_pill
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: .cfi_def_cfa_offset 16
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: .cfi_offset ra, -8
; RV64-NEXT: call callee2@plt
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ret
;
; RV32-WITHFP-LABEL: branch_and_tail_call:
; RV32-WITHFP: # %bb.0:
; RV32-WITHFP-NEXT: andi a0, a0, 1
; RV32-WITHFP-NEXT: beqz a0, .LBB2_2
; RV32-WITHFP-NEXT: # %bb.1: # %blue_pill
; RV32-WITHFP-NEXT: tail callee1@plt
; RV32-WITHFP-NEXT: .LBB2_2: # %red_pill
; RV32-WITHFP-NEXT: addi sp, sp, -16
; RV32-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV32-WITHFP-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
; RV32-WITHFP-NEXT: .cfi_offset ra, -4
; RV32-WITHFP-NEXT: .cfi_offset s0, -8
; RV32-WITHFP-NEXT: addi s0, sp, 16
; RV32-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV32-WITHFP-NEXT: call callee2@plt
; RV32-WITHFP-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-WITHFP-NEXT: addi sp, sp, 16
; RV32-WITHFP-NEXT: ret
;
; RV64-WITHFP-LABEL: branch_and_tail_call:
; RV64-WITHFP: # %bb.0:
; RV64-WITHFP-NEXT: andi a0, a0, 1
; RV64-WITHFP-NEXT: beqz a0, .LBB2_2
; RV64-WITHFP-NEXT: # %bb.1: # %blue_pill
; RV64-WITHFP-NEXT: tail callee1@plt
; RV64-WITHFP-NEXT: .LBB2_2: # %red_pill
; RV64-WITHFP-NEXT: addi sp, sp, -16
; RV64-WITHFP-NEXT: .cfi_def_cfa_offset 16
; RV64-WITHFP-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: sd s0, 0(sp) # 8-byte Folded Spill
; RV64-WITHFP-NEXT: .cfi_offset ra, -8
; RV64-WITHFP-NEXT: .cfi_offset s0, -16
; RV64-WITHFP-NEXT: addi s0, sp, 16
; RV64-WITHFP-NEXT: .cfi_def_cfa s0, 0
; RV64-WITHFP-NEXT: call callee2@plt
; RV64-WITHFP-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: ld s0, 0(sp) # 8-byte Folded Reload
; RV64-WITHFP-NEXT: addi sp, sp, 16
; RV64-WITHFP-NEXT: ret
br i1 %a, label %blue_pill, label %red_pill
blue_pill:
tail call void @callee1()
ret void
red_pill:
call void @callee2()
ret void
}
declare void @callee1()
declare void @callee2()
declare void @callee_with_args(i8*)
|
