forked from OSchip/llvm-project
46 lines
1.4 KiB
LLVM
46 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck %s -check-prefix=RV32I
|
|
|
|
; The stack size is 2048 and the SP adjustment will be split.
|
|
define i32 @SplitSP() nounwind {
|
|
; RV32I-LABEL: SplitSP:
|
|
; RV32I: # %bb.0: # %entry
|
|
; RV32I-NEXT: addi sp, sp, -2032
|
|
; RV32I-NEXT: sw ra, 2028(sp)
|
|
; RV32I-NEXT: addi sp, sp, -16
|
|
; RV32I-NEXT: addi a0, sp, 16
|
|
; RV32I-NEXT: call foo
|
|
; RV32I-NEXT: mv a0, zero
|
|
; RV32I-NEXT: addi sp, sp, 16
|
|
; RV32I-NEXT: lw ra, 2028(sp)
|
|
; RV32I-NEXT: addi sp, sp, 2032
|
|
; RV32I-NEXT: ret
|
|
entry:
|
|
%xx = alloca [2028 x i8], align 1
|
|
%0 = getelementptr inbounds [2028 x i8], [2028 x i8]* %xx, i32 0, i32 0
|
|
%call = call i32 @foo(i8* nonnull %0)
|
|
ret i32 0
|
|
}
|
|
|
|
; The stack size is 2032 and the SP adjustment will not be split.
|
|
define i32 @NoSplitSP() nounwind {
|
|
; RV32I-LABEL: NoSplitSP:
|
|
; RV32I: # %bb.0: # %entry
|
|
; RV32I-NEXT: addi sp, sp, -2032
|
|
; RV32I-NEXT: sw ra, 2028(sp)
|
|
; RV32I-NEXT: addi a0, sp, 4
|
|
; RV32I-NEXT: call foo
|
|
; RV32I-NEXT: mv a0, zero
|
|
; RV32I-NEXT: lw ra, 2028(sp)
|
|
; RV32I-NEXT: addi sp, sp, 2032
|
|
; RV32I-NEXT: ret
|
|
entry:
|
|
%xx = alloca [2024 x i8], align 1
|
|
%0 = getelementptr inbounds [2024 x i8], [2024 x i8]* %xx, i32 0, i32 0
|
|
%call = call i32 @foo(i8* nonnull %0)
|
|
ret i32 0
|
|
}
|
|
|
|
declare i32 @foo(i8*)
|