llvm-project/llvm/test/CodeGen/RISCV/machine-outliner-call.ll
Mark Goncharov 80df56e03b
Reapply "[RISCV] Implement tail call optimization in machine outliner" (#117700)
This MR fixes failed test `CodeGen/RISCV/compress-opt-select.ll`.

It was failed due to previously merged commit `[TTI][RISCV]
Unconditionally break critical edges to sink ADDI (PR #108889)`.

So, regenerated `compress-opt-select` test.
2024-11-26 23:39:45 +08:00

71 lines
1.8 KiB
LLVM

; RUN: llc < %s -verify-machineinstrs -enable-machine-outliner | FileCheck %s
target triple = "riscv64-unknown-linux-gnu"
declare void @foo(i32, i32, i32, i32) minsize
define void @fentry0(i1 %a) nounwind {
; CHECK-LABEL: fentry0:
; CHECK: # %bb.1:
; CHECK-NEXT: call t0, OUTLINED_FUNCTION_[[BB1:[0-9]+]]
; CHECK-NEXT: call foo
; CHECK-LABEL: .LBB0_2:
; CHECK-NEXT: tail OUTLINED_FUNCTION_[[BB2:[0-9]+]]
entry:
br i1 %a, label %if.then, label %if.end
if.then:
call void @foo(i32 1, i32 2, i32 3, i32 4)
br label %if.end
if.end:
call void @foo(i32 5, i32 6, i32 7, i32 8)
ret void
}
define void @fentry1(i1 %a) nounwind {
; CHECK-LABEL: fentry1:
; CHECK: # %bb.1:
; CHECK-NEXT: call t0, OUTLINED_FUNCTION_[[BB1:[0-9]+]]
; CHECK-NEXT: call foo
; CHECK-LABEL: .LBB1_2:
; CHECK-NEXT: tail OUTLINED_FUNCTION_[[BB2:[0-9]+]]
entry:
br i1 %a, label %if.then, label %if.end
if.then:
call void @foo(i32 1, i32 2, i32 3, i32 4)
br label %if.end
if.end:
call void @foo(i32 5, i32 6, i32 7, i32 8)
ret void
}
define void @fentry2(i1 %a) nounwind {
; CHECK-LABEL: fentry2:
; CHECK: # %bb.1:
; CHECK-NEXT: call t0, OUTLINED_FUNCTION_[[BB1:[0-9]+]]
; CHECK-NEXT: call foo
; CHECK-LABEL: .LBB2_2:
; CHECK-NEXT: tail OUTLINED_FUNCTION_[[BB2:[0-9]+]]
entry:
br i1 %a, label %if.then, label %if.end
if.then:
call void @foo(i32 1, i32 2, i32 3, i32 4)
br label %if.end
if.end:
call void @foo(i32 5, i32 6, i32 7, i32 8)
ret void
}
; CHECK: OUTLINED_FUNCTION_[[BB2]]:
; CHECK: li a0, 5
; CHECK-NEXT: li a1, 6
; CHECK-NEXT: li a2, 7
; CHECK-NEXT: li a3, 8
; CHECK-NEXT: call foo
; CHECK: OUTLINED_FUNCTION_[[BB1]]:
; CHECK: li a0, 1
; CHECK-NEXT: li a1, 2
; CHECK-NEXT: li a2, 3
; CHECK-NEXT: li a3, 4
; CHECK-NEXT: jr t0