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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple riscv32-unknown-elf -o - %s \3; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV324; RUN: llc -mtriple riscv32-unknown-elf -mattr=+f -o - %s \5; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV32-F6; RUN: llc -mtriple riscv32-unknown-elf -mattr=+f,+d -o - %s \7; RUN: 2>&1 | FileCheck %s -check-prefix CHECK-RV32-FD8;9; The test case check that the function call in an interrupt handler will use10; the correct CallPreservedMask as normal function. So only callee saved11; registers could live through the function call.12 13define dso_local void @handler() nounwind {14; CHECK-RV32-LABEL: handler:15; CHECK-RV32: # %bb.0: # %entry16; CHECK-RV32-NEXT: addi sp, sp, -1617; CHECK-RV32-NEXT: sw ra, 12(sp) # 4-byte Folded Spill18; CHECK-RV32-NEXT: sw s0, 8(sp) # 4-byte Folded Spill19; CHECK-RV32-NEXT: lui a0, 220; CHECK-RV32-NEXT: addi a0, a0, 421; CHECK-RV32-NEXT: call read22; CHECK-RV32-NEXT: mv s0, a023; CHECK-RV32-NEXT: call callee24; CHECK-RV32-NEXT: mv a0, s025; CHECK-RV32-NEXT: lw ra, 12(sp) # 4-byte Folded Reload26; CHECK-RV32-NEXT: lw s0, 8(sp) # 4-byte Folded Reload27; CHECK-RV32-NEXT: addi sp, sp, 1628; CHECK-RV32-NEXT: tail write29;30; CHECK-RV32-F-LABEL: handler:31; CHECK-RV32-F: # %bb.0: # %entry32; CHECK-RV32-F-NEXT: addi sp, sp, -1633; CHECK-RV32-F-NEXT: sw ra, 12(sp) # 4-byte Folded Spill34; CHECK-RV32-F-NEXT: sw s0, 8(sp) # 4-byte Folded Spill35; CHECK-RV32-F-NEXT: lui a0, 236; CHECK-RV32-F-NEXT: addi a0, a0, 437; CHECK-RV32-F-NEXT: call read38; CHECK-RV32-F-NEXT: mv s0, a039; CHECK-RV32-F-NEXT: call callee40; CHECK-RV32-F-NEXT: mv a0, s041; CHECK-RV32-F-NEXT: lw ra, 12(sp) # 4-byte Folded Reload42; CHECK-RV32-F-NEXT: lw s0, 8(sp) # 4-byte Folded Reload43; CHECK-RV32-F-NEXT: addi sp, sp, 1644; CHECK-RV32-F-NEXT: tail write45;46; CHECK-RV32-FD-LABEL: handler:47; CHECK-RV32-FD: # %bb.0: # %entry48; CHECK-RV32-FD-NEXT: addi sp, sp, -1649; CHECK-RV32-FD-NEXT: sw ra, 12(sp) # 4-byte Folded Spill50; CHECK-RV32-FD-NEXT: sw s0, 8(sp) # 4-byte Folded Spill51; CHECK-RV32-FD-NEXT: lui a0, 252; CHECK-RV32-FD-NEXT: addi a0, a0, 453; CHECK-RV32-FD-NEXT: call read54; CHECK-RV32-FD-NEXT: mv s0, a055; CHECK-RV32-FD-NEXT: call callee56; CHECK-RV32-FD-NEXT: mv a0, s057; CHECK-RV32-FD-NEXT: lw ra, 12(sp) # 4-byte Folded Reload58; CHECK-RV32-FD-NEXT: lw s0, 8(sp) # 4-byte Folded Reload59; CHECK-RV32-FD-NEXT: addi sp, sp, 1660; CHECK-RV32-FD-NEXT: tail write61entry:62 %call = tail call i32 @read(i32 8196)63 tail call void @callee()64 tail call void @write(i32 %call)65 ret void66}67 68declare i32 @read(i32)69declare void @callee(...)70declare void @write(i32)71