forked from OSchip/llvm-project
71 lines
2.5 KiB
LLVM
71 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple riscv32-unknown-elf -o - %s \
|
|
; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV32
|
|
; RUN: llc -mtriple riscv32-unknown-elf -mattr=+f -o - %s \
|
|
; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV32-F
|
|
; RUN: llc -mtriple riscv32-unknown-elf -mattr=+f,+d -o - %s \
|
|
; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV32-FD
|
|
;
|
|
; The test case check that the function call in an interrupt handler will use
|
|
; the correct CallPreservedMask as normal function. So only callee saved
|
|
; registers could live through the function call.
|
|
|
|
define dso_local void @handler() nounwind {
|
|
; CHECK-RV32-LABEL: handler:
|
|
; CHECK-RV32: # %bb.0: # %entry
|
|
; CHECK-RV32-NEXT: addi sp, sp, -16
|
|
; CHECK-RV32-NEXT: sw ra, 12(sp)
|
|
; CHECK-RV32-NEXT: sw s0, 8(sp)
|
|
; CHECK-RV32-NEXT: lui a0, 2
|
|
; CHECK-RV32-NEXT: addi a0, a0, 4
|
|
; CHECK-RV32-NEXT: call read
|
|
; CHECK-RV32-NEXT: mv s0, a0
|
|
; CHECK-RV32-NEXT: call callee
|
|
; CHECK-RV32-NEXT: mv a0, s0
|
|
; CHECK-RV32-NEXT: lw s0, 8(sp)
|
|
; CHECK-RV32-NEXT: lw ra, 12(sp)
|
|
; CHECK-RV32-NEXT: addi sp, sp, 16
|
|
; CHECK-RV32-NEXT: tail write
|
|
;
|
|
; CHECK-RV32-F-LABEL: handler:
|
|
; CHECK-RV32-F: # %bb.0: # %entry
|
|
; CHECK-RV32-F-NEXT: addi sp, sp, -16
|
|
; CHECK-RV32-F-NEXT: sw ra, 12(sp)
|
|
; CHECK-RV32-F-NEXT: sw s0, 8(sp)
|
|
; CHECK-RV32-F-NEXT: lui a0, 2
|
|
; CHECK-RV32-F-NEXT: addi a0, a0, 4
|
|
; CHECK-RV32-F-NEXT: call read
|
|
; CHECK-RV32-F-NEXT: mv s0, a0
|
|
; CHECK-RV32-F-NEXT: call callee
|
|
; CHECK-RV32-F-NEXT: mv a0, s0
|
|
; CHECK-RV32-F-NEXT: lw s0, 8(sp)
|
|
; CHECK-RV32-F-NEXT: lw ra, 12(sp)
|
|
; CHECK-RV32-F-NEXT: addi sp, sp, 16
|
|
; CHECK-RV32-F-NEXT: tail write
|
|
;
|
|
; CHECK-RV32-FD-LABEL: handler:
|
|
; CHECK-RV32-FD: # %bb.0: # %entry
|
|
; CHECK-RV32-FD-NEXT: addi sp, sp, -16
|
|
; CHECK-RV32-FD-NEXT: sw ra, 12(sp)
|
|
; CHECK-RV32-FD-NEXT: sw s0, 8(sp)
|
|
; CHECK-RV32-FD-NEXT: lui a0, 2
|
|
; CHECK-RV32-FD-NEXT: addi a0, a0, 4
|
|
; CHECK-RV32-FD-NEXT: call read
|
|
; CHECK-RV32-FD-NEXT: mv s0, a0
|
|
; CHECK-RV32-FD-NEXT: call callee
|
|
; CHECK-RV32-FD-NEXT: mv a0, s0
|
|
; CHECK-RV32-FD-NEXT: lw s0, 8(sp)
|
|
; CHECK-RV32-FD-NEXT: lw ra, 12(sp)
|
|
; CHECK-RV32-FD-NEXT: addi sp, sp, 16
|
|
; CHECK-RV32-FD-NEXT: tail write
|
|
entry:
|
|
%call = tail call i32 @read(i32 8196)
|
|
tail call void bitcast (void (...)* @callee to void ()*)()
|
|
tail call void @write(i32 %call)
|
|
ret void
|
|
}
|
|
|
|
declare i32 @read(i32)
|
|
declare void @callee(...)
|
|
declare void @write(i32)
|