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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -mattr=+reserve-x18 -verify-machineinstrs < %s \
; RUN: | FileCheck %s --check-prefix=RV32
; RUN: llc -mtriple=riscv64 -mattr=+reserve-x18 -verify-machineinstrs < %s \
; RUN: | FileCheck %s --check-prefix=RV64
define void @f1() shadowcallstack {
; RV32-LABEL: f1:
; RV32: # %bb.0:
; RV32-NEXT: ret
;
; RV64-LABEL: f1:
; RV64: # %bb.0:
; RV64-NEXT: ret
ret void
}
declare void @foo()
define void @f2() shadowcallstack {
; RV32-LABEL: f2:
; RV32: # %bb.0:
; RV32-NEXT: tail foo@plt
;
; RV64-LABEL: f2:
; RV64: # %bb.0:
; RV64-NEXT: tail foo@plt
tail call void @foo()
ret void
}
declare i32 @bar()
define i32 @f3() shadowcallstack {
; RV32-LABEL: f3:
; RV32: # %bb.0:
; RV32-NEXT: sw ra, 0(s2)
; RV32-NEXT: addi s2, s2, 4
; 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 bar@plt
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: lw ra, -4(s2)
; RV32-NEXT: addi s2, s2, -4
; RV32-NEXT: ret
;
; RV64-LABEL: f3:
; RV64: # %bb.0:
; RV64-NEXT: sd ra, 0(s2)
; RV64-NEXT: addi s2, s2, 8
; 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 bar@plt
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ld ra, -8(s2)
; RV64-NEXT: addi s2, s2, -8
; RV64-NEXT: ret
%res = call i32 @bar()
%res1 = add i32 %res, 1
ret i32 %res
}
define i32 @f4() shadowcallstack {
; RV32-LABEL: f4:
; RV32: # %bb.0:
; RV32-NEXT: sw ra, 0(s2)
; RV32-NEXT: addi s2, s2, 4
; 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: sw s1, 4(sp) # 4-byte Folded Spill
; RV32-NEXT: sw s3, 0(sp) # 4-byte Folded Spill
; RV32-NEXT: .cfi_offset ra, -4
; RV32-NEXT: .cfi_offset s0, -8
; RV32-NEXT: .cfi_offset s1, -12
; RV32-NEXT: .cfi_offset s3, -16
; RV32-NEXT: call bar@plt
; RV32-NEXT: mv s0, a0
; RV32-NEXT: call bar@plt
; RV32-NEXT: mv s1, a0
; RV32-NEXT: call bar@plt
; RV32-NEXT: mv s3, a0
; RV32-NEXT: call bar@plt
; RV32-NEXT: add a1, s0, s1
; RV32-NEXT: add a0, s3, a0
; RV32-NEXT: add a0, a1, a0
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s1, 4(sp) # 4-byte Folded Reload
; RV32-NEXT: lw s3, 0(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: lw ra, -4(s2)
; RV32-NEXT: addi s2, s2, -4
; RV32-NEXT: ret
;
; RV64-LABEL: f4:
; RV64: # %bb.0:
; RV64-NEXT: sd ra, 0(s2)
; RV64-NEXT: addi s2, s2, 8
; RV64-NEXT: addi sp, sp, -32
; RV64-NEXT: .cfi_def_cfa_offset 32
; RV64-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: sd s3, 0(sp) # 8-byte Folded Spill
; RV64-NEXT: .cfi_offset ra, -8
; RV64-NEXT: .cfi_offset s0, -16
; RV64-NEXT: .cfi_offset s1, -24
; RV64-NEXT: .cfi_offset s3, -32
; RV64-NEXT: call bar@plt
; RV64-NEXT: mv s0, a0
; RV64-NEXT: call bar@plt
; RV64-NEXT: mv s1, a0
; RV64-NEXT: call bar@plt
; RV64-NEXT: mv s3, a0
; RV64-NEXT: call bar@plt
; RV64-NEXT: addw a1, s0, s1
; RV64-NEXT: addw a0, s3, a0
; RV64-NEXT: addw a0, a1, a0
; RV64-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: ld s3, 0(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 32
; RV64-NEXT: ld ra, -8(s2)
; RV64-NEXT: addi s2, s2, -8
; RV64-NEXT: ret
%res1 = call i32 @bar()
%res2 = call i32 @bar()
%res3 = call i32 @bar()
%res4 = call i32 @bar()
%res12 = add i32 %res1, %res2
%res34 = add i32 %res3, %res4
%res1234 = add i32 %res12, %res34
ret i32 %res1234
}
define i32 @f5() shadowcallstack nounwind {
; RV32-LABEL: f5:
; RV32: # %bb.0:
; RV32-NEXT: sw ra, 0(s2)
; RV32-NEXT: addi s2, s2, 4
; RV32-NEXT: addi sp, sp, -16
; RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT: call bar@plt
; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT: addi sp, sp, 16
; RV32-NEXT: lw ra, -4(s2)
; RV32-NEXT: addi s2, s2, -4
; RV32-NEXT: ret
;
; RV64-LABEL: f5:
; RV64: # %bb.0:
; RV64-NEXT: sd ra, 0(s2)
; RV64-NEXT: addi s2, s2, 8
; RV64-NEXT: addi sp, sp, -16
; RV64-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT: call bar@plt
; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT: addi sp, sp, 16
; RV64-NEXT: ld ra, -8(s2)
; RV64-NEXT: addi s2, s2, -8
; RV64-NEXT: ret
%res = call i32 @bar()
%res1 = add i32 %res, 1
ret i32 %res
}
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