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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes="default<O2>" -aa-pipeline=default -S | FileCheck %s
define ptr @f(ptr %buffer, i32 %n) {
; CHECK-LABEL: @f(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: [[TMP0:%.*]] = tail call ptr @allocate(i32 12)
; CHECK-NEXT: store ptr [[TMP0]], ptr [[BUFFER:%.*]], align 8
; CHECK-NEXT: store i32 [[N:%.*]], ptr [[TMP0]], align 4
; CHECK-NEXT: ret ptr @f.resume.0
;
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, ptr %buffer, ptr @prototype, ptr @allocate, ptr @deallocate)
%hdl = call ptr @llvm.coro.begin(token %id, ptr null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %sum, %resume ]
%values = call { i32, i1 } (...) @llvm.coro.suspend.retcon.sl_i32i1s()
%finished = extractvalue { i32, i1 } %values, 1
br i1 %finished, label %cleanup, label %resume
resume:
%input = extractvalue { i32, i1 } %values, 0
%sum = add i32 %n.val, %input
br label %loop
cleanup:
call void @print(i32 %n.val)
call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
unreachable
}
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call ptr @allocate(i32 12)
; CHECK-NEXT: store i32 1, ptr [[TMP0]], align 4
; CHECK-NEXT: [[N_VAL3_SPILL_ADDR_I:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 4
; CHECK-NEXT: store i32 1, ptr [[N_VAL3_SPILL_ADDR_I]], align 4, !noalias !0
; CHECK-NEXT: [[INPUT_SPILL_ADDR_I:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 8
; CHECK-NEXT: store i32 2, ptr [[INPUT_SPILL_ADDR_I]], align 4, !noalias !0
; CHECK-NEXT: [[INPUT_RELOAD_ADDR13_I:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 8
; CHECK-NEXT: [[N_VAL3_RELOAD_ADDR11_I:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 4
; CHECK-NEXT: store i32 3, ptr [[N_VAL3_RELOAD_ADDR11_I]], align 4, !noalias !3
; CHECK-NEXT: store i32 4, ptr [[INPUT_RELOAD_ADDR13_I]], align 4, !noalias !3
; CHECK-NEXT: tail call void @print(i32 7), !noalias !6
; CHECK-NEXT: tail call void @deallocate(ptr nonnull [[TMP0]]), !noalias !6
; CHECK-NEXT: ret i32 0
;
entry:
%0 = alloca [8 x i8], align 4
%prepare = call ptr @llvm.coro.prepare.retcon(ptr @f)
%cont0 = call ptr %prepare(ptr %0, i32 1)
%cont1 = call ptr %cont0(ptr %0, i32 2, i1 zeroext false)
%cont2 = call ptr %cont1(ptr %0, i32 4, i1 zeroext false)
call ptr %cont2(ptr %0, i32 100, i1 zeroext true)
ret i32 0
}
; Unfortunately, we don't seem to fully optimize this right now due
; to some sort of phase-ordering thing.
declare token @llvm.coro.id.retcon(i32, i32, ptr, ptr, ptr, ptr)
declare ptr @llvm.coro.begin(token, ptr)
declare { i32, i1 } @llvm.coro.suspend.retcon.sl_i32i1s(...)
declare i1 @llvm.coro.end(ptr, i1, token)
declare ptr @llvm.coro.prepare.retcon(ptr)
declare ptr @prototype(ptr, i32, i1 zeroext)
declare noalias ptr @allocate(i32 %size)
declare void @deallocate(ptr %ptr)
declare void @print(i32)
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