; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6 ; RUN: llc -mtriple=riscv64 -mattr=+m -O2 < %s | FileCheck %s -check-prefix=RV64 ; RUN: llc -mtriple=riscv32 -mattr=+m -O2 < %s | FileCheck %s -check-prefix=RV32 ; Test that very large outgoing call frames in functions with variable-sized ; objects get proper stack probing. The outgoing args are large enough to force ; the PROBED_STACKALLOC path, which must be expanded in a non-entry block. define void @f(i64 %n) #0 { ; RV64-LABEL: f: ; RV64: # %bb.0: # %entry ; RV64-NEXT: addi sp, sp, -16 ; RV64-NEXT: .cfi_def_cfa_offset 16 ; RV64-NEXT: sd zero, 0(sp) ; 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, 2 ; RV64-NEXT: addi a0, a0, 15 ; RV64-NEXT: andi a0, a0, -16 ; RV64-NEXT: sub a0, sp, a0 ; RV64-NEXT: lui a1, 1 ; RV64-NEXT: .LBB0_1: # %entry ; RV64-NEXT: # =>This Inner Loop Header: Depth=1 ; RV64-NEXT: sub sp, sp, a1 ; RV64-NEXT: sd zero, 0(sp) ; RV64-NEXT: bltu a0, sp, .LBB0_1 ; RV64-NEXT: # %bb.2: # %entry ; RV64-NEXT: mv sp, a0 ; RV64-NEXT: lui a1, 5 ; RV64-NEXT: sub t1, sp, a1 ; RV64-NEXT: lui t2, 1 ; RV64-NEXT: .LBB0_3: # %entry ; RV64-NEXT: # =>This Inner Loop Header: Depth=1 ; RV64-NEXT: sub sp, sp, t2 ; RV64-NEXT: sd zero, 0(sp) ; RV64-NEXT: bne sp, t1, .LBB0_3 ; RV64-NEXT: # %bb.4: # %entry ; RV64-NEXT: addi sp, sp, -2048 ; RV64-NEXT: addi sp, sp, -1424 ; RV64-NEXT: sd zero, 0(sp) ; RV64-NEXT: call g ; RV64-NEXT: lui a0, 6 ; RV64-NEXT: addi a0, a0, -624 ; RV64-NEXT: add sp, sp, a0 ; RV64-NEXT: addi sp, s0, -16 ; RV64-NEXT: .cfi_def_cfa sp, 16 ; RV64-NEXT: ld ra, 8(sp) # 8-byte Folded Reload ; RV64-NEXT: ld s0, 0(sp) # 8-byte Folded Reload ; RV64-NEXT: .cfi_restore ra ; RV64-NEXT: .cfi_restore s0 ; RV64-NEXT: addi sp, sp, 16 ; RV64-NEXT: .cfi_def_cfa_offset 0 ; RV64-NEXT: ret ; ; RV32-LABEL: f: ; RV32: # %bb.0: # %entry ; RV32-NEXT: addi sp, sp, -16 ; RV32-NEXT: .cfi_def_cfa_offset 16 ; RV32-NEXT: sw zero, 0(sp) ; 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: slli a0, a0, 2 ; RV32-NEXT: addi a0, a0, 15 ; RV32-NEXT: andi a0, a0, -16 ; RV32-NEXT: sub a0, sp, a0 ; RV32-NEXT: lui a1, 1 ; RV32-NEXT: .LBB0_1: # %entry ; RV32-NEXT: # =>This Inner Loop Header: Depth=1 ; RV32-NEXT: sub sp, sp, a1 ; RV32-NEXT: sw zero, 0(sp) ; RV32-NEXT: bltu a0, sp, .LBB0_1 ; RV32-NEXT: # %bb.2: # %entry ; RV32-NEXT: mv sp, a0 ; RV32-NEXT: lui a1, 5 ; RV32-NEXT: sub t1, sp, a1 ; RV32-NEXT: lui t2, 1 ; RV32-NEXT: .LBB0_3: # %entry ; RV32-NEXT: # =>This Inner Loop Header: Depth=1 ; RV32-NEXT: sub sp, sp, t2 ; RV32-NEXT: sw zero, 0(sp) ; RV32-NEXT: bne sp, t1, .LBB0_3 ; RV32-NEXT: # %bb.4: # %entry ; RV32-NEXT: addi sp, sp, -2048 ; RV32-NEXT: addi sp, sp, -1456 ; RV32-NEXT: sw zero, 0(sp) ; RV32-NEXT: call g ; RV32-NEXT: lui a0, 6 ; RV32-NEXT: addi a0, a0, -592 ; RV32-NEXT: add sp, sp, a0 ; RV32-NEXT: addi sp, s0, -16 ; RV32-NEXT: .cfi_def_cfa sp, 16 ; RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload ; RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload ; RV32-NEXT: .cfi_restore ra ; RV32-NEXT: .cfi_restore s0 ; RV32-NEXT: addi sp, sp, 16 ; RV32-NEXT: .cfi_def_cfa_offset 0 ; RV32-NEXT: ret entry: %v = alloca i32, i64 %n call void @g(ptr %v, [3000 x i64] poison) ret void } declare void @g(ptr, [3000 x i64]) attributes #0 = { "probe-stack"="inline-asm" }