1;; Test the function attribute "patchable-function-entry". 2; RUN: llc -mtriple=riscv32 --riscv-no-aliases < %s | FileCheck %s --check-prefixes=CHECK,RV32,NORVC 3; RUN: llc -mtriple=riscv64 --riscv-no-aliases < %s | FileCheck %s --check-prefixes=CHECK,RV64,NORVC 4; RUN: llc -mtriple=riscv32 -mattr=+c --riscv-no-aliases < %s | FileCheck %s --check-prefixes=CHECK,RV32,RVC 5; RUN: llc -mtriple=riscv64 -mattr=+c --riscv-no-aliases < %s | FileCheck %s --check-prefixes=CHECK,RV64,RVC 6 7define void @f0() "patchable-function-entry"="0" { 8; CHECK-LABEL: f0: 9; CHECK-NEXT: .Lfunc_begin0: 10; CHECK-NOT: {{addi|c.nop}} 11; NORVC: jalr zero, 0(ra) 12; RVC: c.jr ra 13; CHECK-NOT: .section __patchable_function_entries 14 ret void 15} 16 17define void @f1() "patchable-function-entry"="1" { 18; CHECK-LABEL: f1: 19; CHECK-NEXT: .Lfunc_begin1: 20; NORVC: addi zero, zero, 0 21; NORVC-NEXT: jalr zero, 0(ra) 22; RVC: c.nop 23; RVC-NEXT: c.jr ra 24; CHECK: .section __patchable_function_entries,"awo",@progbits,f1{{$}} 25; 32: .p2align 2 26; 32-NEXT: .word .Lfunc_begin1 27; 64: .p2align 3 28; 64-NEXT: .quad .Lfunc_begin1 29 ret void 30} 31 32$f5 = comdat any 33define void @f5() "patchable-function-entry"="5" comdat { 34; CHECK-LABEL: f5: 35; CHECK-NEXT: .Lfunc_begin2: 36; NORVC-COUNT-5: addi zero, zero, 0 37; NORVC-NEXT: jalr zero, 0(ra) 38; RVC-COUNT-5: c.nop 39; RVC-NEXT: c.jr ra 40; CHECK: .section __patchable_function_entries,"awoG",@progbits,f5,f5,comdat{{$}} 41; RV32: .p2align 2 42; RV32-NEXT: .word .Lfunc_begin2 43; RV64: .p2align 3 44; RV64-NEXT: .quad .Lfunc_begin2 45 ret void 46} 47 48;; -fpatchable-function-entry=3,2 49;; "patchable-function-prefix" emits data before the function entry label. 50define void @f3_2() "patchable-function-entry"="1" "patchable-function-prefix"="2" { 51; CHECK-LABEL: .type f3_2,@function 52; CHECK-NEXT: .Ltmp0: 53; NORVC-COUNT-2: addi zero, zero, 0 54; RVC-COUNT-2: c.nop 55; CHECK-NEXT: f3_2: # @f3_2 56; CHECK: # %bb.0: 57; NORVC-NEXT: addi zero, zero, 0 58; NORVC-NEXT: addi sp, sp, -16 59; RVC-NEXT: c.nop 60; RVC-NEXT: c.addi sp, -16 61;; .size does not include the prefix. 62; CHECK: .Lfunc_end3: 63; CHECK-NEXT: .size f3_2, .Lfunc_end3-f3_2 64; CHECK: .section __patchable_function_entries,"awo",@progbits,f3_2{{$}} 65; RV32: .p2align 2 66; RV32-NEXT: .word .Ltmp0 67; RV64: .p2align 3 68; RV64-NEXT: .quad .Ltmp0 69 %frame = alloca i8, i32 16 70 ret void 71} 72