forked from OSchip/llvm-project
150 lines
4.9 KiB
LLVM
150 lines
4.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=riscv32 -mattr=+f -code-model=small -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck %s -check-prefix=RV32I-SMALL
|
|
; RUN: llc -mtriple=riscv32 -mattr=+f -code-model=medium -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck %s -check-prefix=RV32I-MEDIUM
|
|
|
|
; Check lowering of globals
|
|
@G = global i32 0
|
|
|
|
define i32 @lower_global(i32 %a) nounwind {
|
|
; RV32I-SMALL-LABEL: lower_global:
|
|
; RV32I-SMALL: # %bb.0:
|
|
; RV32I-SMALL-NEXT: lui a0, %hi(G)
|
|
; RV32I-SMALL-NEXT: lw a0, %lo(G)(a0)
|
|
; RV32I-SMALL-NEXT: ret
|
|
;
|
|
; RV32I-MEDIUM-LABEL: lower_global:
|
|
; RV32I-MEDIUM: # %bb.0:
|
|
; RV32I-MEDIUM-NEXT: .LBB0_1: # Label of block must be emitted
|
|
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(G)
|
|
; RV32I-MEDIUM-NEXT: addi a0, a0, %pcrel_lo(.LBB0_1)
|
|
; RV32I-MEDIUM-NEXT: lw a0, 0(a0)
|
|
; RV32I-MEDIUM-NEXT: ret
|
|
%1 = load volatile i32, i32* @G
|
|
ret i32 %1
|
|
}
|
|
|
|
; Check lowering of blockaddresses
|
|
|
|
@addr = global i8* null
|
|
|
|
define void @lower_blockaddress() nounwind {
|
|
; RV32I-SMALL-LABEL: lower_blockaddress:
|
|
; RV32I-SMALL: # %bb.0:
|
|
; RV32I-SMALL-NEXT: lui a0, %hi(addr)
|
|
; RV32I-SMALL-NEXT: addi a1, zero, 1
|
|
; RV32I-SMALL-NEXT: sw a1, %lo(addr)(a0)
|
|
; RV32I-SMALL-NEXT: ret
|
|
;
|
|
; RV32I-MEDIUM-LABEL: lower_blockaddress:
|
|
; RV32I-MEDIUM: # %bb.0:
|
|
; RV32I-MEDIUM-NEXT: .LBB1_1: # Label of block must be emitted
|
|
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(addr)
|
|
; RV32I-MEDIUM-NEXT: addi a0, a0, %pcrel_lo(.LBB1_1)
|
|
; RV32I-MEDIUM-NEXT: addi a1, zero, 1
|
|
; RV32I-MEDIUM-NEXT: sw a1, 0(a0)
|
|
; RV32I-MEDIUM-NEXT: ret
|
|
store volatile i8* blockaddress(@lower_blockaddress, %block), i8** @addr
|
|
ret void
|
|
|
|
block:
|
|
unreachable
|
|
}
|
|
|
|
; Check lowering of blockaddress that forces a displacement to be added
|
|
|
|
define signext i32 @lower_blockaddress_displ(i32 signext %w) nounwind {
|
|
; RV32I-SMALL-LABEL: lower_blockaddress_displ:
|
|
; RV32I-SMALL: # %bb.0: # %entry
|
|
; RV32I-SMALL-NEXT: addi sp, sp, -16
|
|
; RV32I-SMALL-NEXT: lui a1, %hi(.Ltmp0)
|
|
; RV32I-SMALL-NEXT: addi a1, a1, %lo(.Ltmp0)
|
|
; RV32I-SMALL-NEXT: addi a2, zero, 101
|
|
; RV32I-SMALL-NEXT: sw a1, 8(sp)
|
|
; RV32I-SMALL-NEXT: blt a0, a2, .LBB2_3
|
|
; RV32I-SMALL-NEXT: # %bb.1: # %if.then
|
|
; RV32I-SMALL-NEXT: lw a0, 8(sp)
|
|
; RV32I-SMALL-NEXT: jr a0
|
|
; RV32I-SMALL-NEXT: .Ltmp0: # Block address taken
|
|
; RV32I-SMALL-NEXT: .LBB2_2: # %return
|
|
; RV32I-SMALL-NEXT: addi a0, zero, 4
|
|
; RV32I-SMALL-NEXT: addi sp, sp, 16
|
|
; RV32I-SMALL-NEXT: ret
|
|
; RV32I-SMALL-NEXT: .LBB2_3: # %return.clone
|
|
; RV32I-SMALL-NEXT: addi a0, zero, 3
|
|
; RV32I-SMALL-NEXT: addi sp, sp, 16
|
|
; RV32I-SMALL-NEXT: ret
|
|
;
|
|
; RV32I-MEDIUM-LABEL: lower_blockaddress_displ:
|
|
; RV32I-MEDIUM: # %bb.0: # %entry
|
|
; RV32I-MEDIUM-NEXT: addi sp, sp, -16
|
|
; RV32I-MEDIUM-NEXT: .LBB2_4: # %entry
|
|
; RV32I-MEDIUM-NEXT: # Label of block must be emitted
|
|
; RV32I-MEDIUM-NEXT: auipc a1, %pcrel_hi(.Ltmp0)
|
|
; RV32I-MEDIUM-NEXT: addi a1, a1, %pcrel_lo(.LBB2_4)
|
|
; RV32I-MEDIUM-NEXT: addi a2, zero, 101
|
|
; RV32I-MEDIUM-NEXT: sw a1, 8(sp)
|
|
; RV32I-MEDIUM-NEXT: blt a0, a2, .LBB2_3
|
|
; RV32I-MEDIUM-NEXT: # %bb.1: # %if.then
|
|
; RV32I-MEDIUM-NEXT: lw a0, 8(sp)
|
|
; RV32I-MEDIUM-NEXT: jr a0
|
|
; RV32I-MEDIUM-NEXT: .Ltmp0: # Block address taken
|
|
; RV32I-MEDIUM-NEXT: .LBB2_2: # %return
|
|
; RV32I-MEDIUM-NEXT: addi a0, zero, 4
|
|
; RV32I-MEDIUM-NEXT: addi sp, sp, 16
|
|
; RV32I-MEDIUM-NEXT: ret
|
|
; RV32I-MEDIUM-NEXT: .LBB2_3: # %return.clone
|
|
; RV32I-MEDIUM-NEXT: addi a0, zero, 3
|
|
; RV32I-MEDIUM-NEXT: addi sp, sp, 16
|
|
; RV32I-MEDIUM-NEXT: ret
|
|
entry:
|
|
%x = alloca i8*, align 8
|
|
store i8* blockaddress(@lower_blockaddress_displ, %test_block), i8** %x, align 8
|
|
%cmp = icmp sgt i32 %w, 100
|
|
br i1 %cmp, label %if.then, label %if.end
|
|
|
|
if.then:
|
|
%addr = load i8*, i8** %x, align 8
|
|
br label %indirectgoto
|
|
|
|
if.end:
|
|
br label %return
|
|
|
|
test_block:
|
|
br label %return
|
|
|
|
return:
|
|
%retval = phi i32 [ 3, %if.end ], [ 4, %test_block ]
|
|
ret i32 %retval
|
|
|
|
indirectgoto:
|
|
indirectbr i8* %addr, [ label %test_block ]
|
|
}
|
|
|
|
; Check lowering of constantpools
|
|
|
|
define float @lower_constantpool(float %a) nounwind {
|
|
; RV32I-SMALL-LABEL: lower_constantpool:
|
|
; RV32I-SMALL: # %bb.0:
|
|
; RV32I-SMALL-NEXT: lui a1, %hi(.LCPI3_0)
|
|
; RV32I-SMALL-NEXT: flw ft0, %lo(.LCPI3_0)(a1)
|
|
; RV32I-SMALL-NEXT: fmv.w.x ft1, a0
|
|
; RV32I-SMALL-NEXT: fadd.s ft0, ft1, ft0
|
|
; RV32I-SMALL-NEXT: fmv.x.w a0, ft0
|
|
; RV32I-SMALL-NEXT: ret
|
|
;
|
|
; RV32I-MEDIUM-LABEL: lower_constantpool:
|
|
; RV32I-MEDIUM: # %bb.0:
|
|
; RV32I-MEDIUM-NEXT: .LBB3_1: # Label of block must be emitted
|
|
; RV32I-MEDIUM-NEXT: auipc a1, %pcrel_hi(.LCPI3_0)
|
|
; RV32I-MEDIUM-NEXT: addi a1, a1, %pcrel_lo(.LBB3_1)
|
|
; RV32I-MEDIUM-NEXT: flw ft0, 0(a1)
|
|
; RV32I-MEDIUM-NEXT: fmv.w.x ft1, a0
|
|
; RV32I-MEDIUM-NEXT: fadd.s ft0, ft1, ft0
|
|
; RV32I-MEDIUM-NEXT: fmv.x.w a0, ft0
|
|
; RV32I-MEDIUM-NEXT: ret
|
|
%1 = fadd float %a, 1.0
|
|
ret float %1
|
|
}
|