241 lines
7.6 KiB
LLVM
241 lines
7.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=riscv32 -disable-block-placement -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck -check-prefix=RV32I %s
|
|
; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbt -disable-block-placement -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck -check-prefix=RV32IBT %s
|
|
|
|
define signext i32 @foo(i32 signext %a, i32 *%b) nounwind {
|
|
; RV32I-LABEL: foo:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: beq a0, a2, .LBB0_2
|
|
; RV32I-NEXT: # %bb.1:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_2:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bne a0, a2, .LBB0_4
|
|
; RV32I-NEXT: # %bb.3:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_4:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bltu a2, a0, .LBB0_6
|
|
; RV32I-NEXT: # %bb.5:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_6:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bgeu a0, a2, .LBB0_8
|
|
; RV32I-NEXT: # %bb.7:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_8:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bltu a0, a2, .LBB0_10
|
|
; RV32I-NEXT: # %bb.9:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_10:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bgeu a2, a0, .LBB0_12
|
|
; RV32I-NEXT: # %bb.11:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_12:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: blt a2, a0, .LBB0_14
|
|
; RV32I-NEXT: # %bb.13:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_14:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bge a0, a2, .LBB0_16
|
|
; RV32I-NEXT: # %bb.15:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_16:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: blt a0, a2, .LBB0_18
|
|
; RV32I-NEXT: # %bb.17:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_18:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: bge a2, a0, .LBB0_20
|
|
; RV32I-NEXT: # %bb.19:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_20:
|
|
; RV32I-NEXT: lw a2, 0(a1)
|
|
; RV32I-NEXT: blez a2, .LBB0_22
|
|
; RV32I-NEXT: # %bb.21:
|
|
; RV32I-NEXT: mv a0, a2
|
|
; RV32I-NEXT: .LBB0_22:
|
|
; RV32I-NEXT: lw a3, 0(a1)
|
|
; RV32I-NEXT: bgez a2, .LBB0_24
|
|
; RV32I-NEXT: # %bb.23:
|
|
; RV32I-NEXT: mv a0, a3
|
|
; RV32I-NEXT: .LBB0_24:
|
|
; RV32I-NEXT: lw a3, 0(a1)
|
|
; RV32I-NEXT: li a4, 1024
|
|
; RV32I-NEXT: blt a4, a3, .LBB0_26
|
|
; RV32I-NEXT: # %bb.25:
|
|
; RV32I-NEXT: mv a0, a3
|
|
; RV32I-NEXT: .LBB0_26:
|
|
; RV32I-NEXT: lw a1, 0(a1)
|
|
; RV32I-NEXT: li a3, 2046
|
|
; RV32I-NEXT: bltu a3, a2, .LBB0_28
|
|
; RV32I-NEXT: # %bb.27:
|
|
; RV32I-NEXT: mv a0, a1
|
|
; RV32I-NEXT: .LBB0_28:
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV32IBT-LABEL: foo:
|
|
; RV32IBT: # %bb.0:
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: xor a4, a0, a2
|
|
; RV32IBT-NEXT: cmov a0, a4, a2, a0
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: xor a4, a0, a3
|
|
; RV32IBT-NEXT: cmov a0, a4, a0, a3
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: sltu a4, a2, a0
|
|
; RV32IBT-NEXT: cmov a0, a4, a0, a2
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: sltu a4, a0, a3
|
|
; RV32IBT-NEXT: cmov a0, a4, a3, a0
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: sltu a4, a0, a2
|
|
; RV32IBT-NEXT: cmov a0, a4, a0, a2
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: sltu a4, a3, a0
|
|
; RV32IBT-NEXT: cmov a0, a4, a3, a0
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: slt a4, a2, a0
|
|
; RV32IBT-NEXT: cmov a0, a4, a0, a2
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: slt a4, a0, a3
|
|
; RV32IBT-NEXT: cmov a0, a4, a3, a0
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: slt a4, a0, a2
|
|
; RV32IBT-NEXT: lw a5, 0(a1)
|
|
; RV32IBT-NEXT: cmov a0, a4, a0, a2
|
|
; RV32IBT-NEXT: slt a2, a3, a0
|
|
; RV32IBT-NEXT: cmov a0, a2, a3, a0
|
|
; RV32IBT-NEXT: slti a2, a5, 1
|
|
; RV32IBT-NEXT: lw a3, 0(a1)
|
|
; RV32IBT-NEXT: cmov a0, a2, a0, a5
|
|
; RV32IBT-NEXT: lw a2, 0(a1)
|
|
; RV32IBT-NEXT: slti a4, a5, 0
|
|
; RV32IBT-NEXT: cmov a0, a4, a3, a0
|
|
; RV32IBT-NEXT: lw a1, 0(a1)
|
|
; RV32IBT-NEXT: slti a3, a2, 1025
|
|
; RV32IBT-NEXT: cmov a0, a3, a2, a0
|
|
; RV32IBT-NEXT: sltiu a2, a5, 2047
|
|
; RV32IBT-NEXT: cmov a0, a2, a1, a0
|
|
; RV32IBT-NEXT: ret
|
|
%val1 = load volatile i32, i32* %b
|
|
%tst1 = icmp eq i32 %a, %val1
|
|
%val2 = select i1 %tst1, i32 %a, i32 %val1
|
|
|
|
%val3 = load volatile i32, i32* %b
|
|
%tst2 = icmp ne i32 %val2, %val3
|
|
%val4 = select i1 %tst2, i32 %val2, i32 %val3
|
|
|
|
%val5 = load volatile i32, i32* %b
|
|
%tst3 = icmp ugt i32 %val4, %val5
|
|
%val6 = select i1 %tst3, i32 %val4, i32 %val5
|
|
|
|
%val7 = load volatile i32, i32* %b
|
|
%tst4 = icmp uge i32 %val6, %val7
|
|
%val8 = select i1 %tst4, i32 %val6, i32 %val7
|
|
|
|
%val9 = load volatile i32, i32* %b
|
|
%tst5 = icmp ult i32 %val8, %val9
|
|
%val10 = select i1 %tst5, i32 %val8, i32 %val9
|
|
|
|
%val11 = load volatile i32, i32* %b
|
|
%tst6 = icmp ule i32 %val10, %val11
|
|
%val12 = select i1 %tst6, i32 %val10, i32 %val11
|
|
|
|
%val13 = load volatile i32, i32* %b
|
|
%tst7 = icmp sgt i32 %val12, %val13
|
|
%val14 = select i1 %tst7, i32 %val12, i32 %val13
|
|
|
|
%val15 = load volatile i32, i32* %b
|
|
%tst8 = icmp sge i32 %val14, %val15
|
|
%val16 = select i1 %tst8, i32 %val14, i32 %val15
|
|
|
|
%val17 = load volatile i32, i32* %b
|
|
%tst9 = icmp slt i32 %val16, %val17
|
|
%val18 = select i1 %tst9, i32 %val16, i32 %val17
|
|
|
|
%val19 = load volatile i32, i32* %b
|
|
%tst10 = icmp sle i32 %val18, %val19
|
|
%val20 = select i1 %tst10, i32 %val18, i32 %val19
|
|
|
|
%val21 = load volatile i32, i32* %b
|
|
%tst11 = icmp slt i32 %val21, 1
|
|
%val22 = select i1 %tst11, i32 %val20, i32 %val21
|
|
|
|
%val23 = load volatile i32, i32* %b
|
|
%tst12 = icmp sgt i32 %val21, -1
|
|
%val24 = select i1 %tst12, i32 %val22, i32 %val23
|
|
|
|
%val25 = load volatile i32, i32* %b
|
|
%tst13 = icmp sgt i32 %val25, 1024
|
|
%val26 = select i1 %tst13, i32 %val24, i32 %val25
|
|
|
|
%val27 = load volatile i32, i32* %b
|
|
%tst14 = icmp ugt i32 %val21, 2046
|
|
%val28 = select i1 %tst14, i32 %val26, i32 %val27
|
|
ret i32 %val28
|
|
}
|
|
|
|
; Test that we can ComputeNumSignBits across basic blocks when the live out is
|
|
; RISCVISD::SELECT_CC. There should be no slli+srai or sext.h in the output.
|
|
define signext i16 @numsignbits(i16 signext %0, i16 signext %1, i16 signext %2, i16 signext %3) nounwind {
|
|
; RV32I-LABEL: numsignbits:
|
|
; RV32I: # %bb.0:
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
|
|
; RV32I-NEXT: mv s0, a3
|
|
; RV32I-NEXT: beqz a0, .LBB1_2
|
|
; RV32I-NEXT: # %bb.1:
|
|
; RV32I-NEXT: mv s0, a2
|
|
; RV32I-NEXT: .LBB1_2:
|
|
; RV32I-NEXT: beqz a1, .LBB1_4
|
|
; RV32I-NEXT: # %bb.3:
|
|
; RV32I-NEXT: mv a0, s0
|
|
; RV32I-NEXT: call bar@plt
|
|
; RV32I-NEXT: .LBB1_4:
|
|
; RV32I-NEXT: mv a0, s0
|
|
; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: ret
|
|
;
|
|
; RV32IBT-LABEL: numsignbits:
|
|
; RV32IBT: # %bb.0:
|
|
; RV32IBT-NEXT: addi sp, sp, -16
|
|
; RV32IBT-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
|
|
; RV32IBT-NEXT: sw s0, 8(sp) # 4-byte Folded Spill
|
|
; RV32IBT-NEXT: cmov s0, a0, a2, a3
|
|
; RV32IBT-NEXT: beqz a1, .LBB1_2
|
|
; RV32IBT-NEXT: # %bb.1:
|
|
; RV32IBT-NEXT: mv a0, s0
|
|
; RV32IBT-NEXT: call bar@plt
|
|
; RV32IBT-NEXT: .LBB1_2:
|
|
; RV32IBT-NEXT: mv a0, s0
|
|
; RV32IBT-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
|
|
; RV32IBT-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
|
|
; RV32IBT-NEXT: addi sp, sp, 16
|
|
; RV32IBT-NEXT: ret
|
|
%5 = icmp eq i16 %0, 0
|
|
%6 = select i1 %5, i16 %3, i16 %2
|
|
%7 = icmp eq i16 %1, 0
|
|
br i1 %7, label %9, label %8
|
|
|
|
8: ; preds = %4
|
|
tail call void @bar(i16 signext %6)
|
|
br label %9
|
|
|
|
9: ; preds = %8, %4
|
|
ret i16 %6
|
|
}
|
|
|
|
declare void @bar(i16 signext)
|