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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; First example from Doc/Coroutines.rst (two block loop) converted to retcon
; RUN: opt -opaque-pointers=0 < %s -passes='default<O2>' -S | FileCheck %s
; RUN: opt -opaque-pointers=0 < %s -passes='module(coro-early),cgscc(coro-split),module(coro-cleanup)' -S | FileCheck --check-prefix=CORO %s
define i8* @f(i8* %buffer, i32 %n) {
; CHECK-LABEL: @f(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: [[N_VAL_SPILL_ADDR:%.*]] = bitcast i8* [[BUFFER:%.*]] to i32*
; CHECK-NEXT: store i32 [[N:%.*]], i32* [[N_VAL_SPILL_ADDR]], align 4
; CHECK-NEXT: tail call void @print(i32 [[N]])
; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i1)* @f.resume.0 to i8*)
;
; CORO-LABEL: @f(
; CORO-NEXT: entry:
; CORO-NEXT: [[FRAMEPTR:%.*]] = bitcast i8* [[BUFFER:%.*]] to %f.Frame*
; CORO-NEXT: [[N_VAL_SPILL_ADDR:%.*]] = getelementptr inbounds [[F_FRAME:%.*]], %f.Frame* [[FRAMEPTR]], i32 0, i32 0
; CORO-NEXT: store i32 [[N:%.*]], i32* [[N_VAL_SPILL_ADDR]], align 4
; CORO-NEXT: call void @print(i32 [[N]])
; CORO-NEXT: [[TMP0:%.*]] = bitcast i8* (i8*, i1)* @f.resume.0 to i8*
; CORO-NEXT: ret i8* [[TMP0]]
;
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast (i8* (i8*, i1)* @prototype to i8*), i8* bitcast (i8* (i32)* @allocate to i8*), i8* bitcast (void (i8*)* @deallocate to i8*))
%hdl = call i8* @llvm.coro.begin(token %id, i8* null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %inc, %resume ]
call void @print(i32 %n.val)
%unwind0 = call i1 (...) @llvm.coro.suspend.retcon.i1()
br i1 %unwind0, label %cleanup, label %resume
resume:
%inc = add i32 %n.val, 1
br label %loop
cleanup:
call i1 @llvm.coro.end(i8* %hdl, i1 0)
unreachable
}
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: tail call void @print(i32 4)
; CHECK-NEXT: tail call void @print(i32 5), !noalias !0
; CHECK-NEXT: tail call void @print(i32 6), !noalias !3
; CHECK-NEXT: ret i32 0
;
; CORO-LABEL: @main(
; CORO-NEXT: entry:
; CORO-NEXT: [[TMP0:%.*]] = alloca [8 x i8], align 4
; CORO-NEXT: [[BUFFER:%.*]] = bitcast [8 x i8]* [[TMP0]] to i8*
; CORO-NEXT: [[CONT0:%.*]] = call i8* @f(i8* [[BUFFER]], i32 4)
; CORO-NEXT: [[CONT0_CAST:%.*]] = bitcast i8* [[CONT0]] to i8* (i8*, i1)*
; CORO-NEXT: [[CONT1:%.*]] = call i8* [[CONT0_CAST]](i8* [[BUFFER]], i1 zeroext false)
; CORO-NEXT: [[CONT1_CAST:%.*]] = bitcast i8* [[CONT1]] to i8* (i8*, i1)*
; CORO-NEXT: [[CONT2:%.*]] = call i8* [[CONT1_CAST]](i8* [[BUFFER]], i1 zeroext false)
; CORO-NEXT: [[CONT2_CAST:%.*]] = bitcast i8* [[CONT2]] to i8* (i8*, i1)*
; CORO-NEXT: [[TMP1:%.*]] = call i8* [[CONT2_CAST]](i8* [[BUFFER]], i1 zeroext true)
; CORO-NEXT: ret i32 0
;
entry:
%0 = alloca [8 x i8], align 4
%buffer = bitcast [8 x i8]* %0 to i8*
%prepare = call i8* @llvm.coro.prepare.retcon(i8* bitcast (i8* (i8*, i32)* @f to i8*))
%f = bitcast i8* %prepare to i8* (i8*, i32)*
%cont0 = call i8* %f(i8* %buffer, i32 4)
%cont0.cast = bitcast i8* %cont0 to i8* (i8*, i1)*
%cont1 = call i8* %cont0.cast(i8* %buffer, i1 zeroext false)
%cont1.cast = bitcast i8* %cont1 to i8* (i8*, i1)*
%cont2 = call i8* %cont1.cast(i8* %buffer, i1 zeroext false)
%cont2.cast = bitcast i8* %cont2 to i8* (i8*, i1)*
call i8* %cont2.cast(i8* %buffer, 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.
define hidden { i8*, i8* } @g(i8* %buffer, i16* %ptr) {
; CHECK-LABEL: @g(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: [[TMP0:%.*]] = tail call i8* @allocate(i32 8)
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i8* [[BUFFER:%.*]] to i8**
; CHECK-NEXT: store i8* [[TMP0]], i8** [[TMP1]], align 8
; CHECK-NEXT: [[PTR_SPILL_ADDR:%.*]] = bitcast i8* [[TMP0]] to i16**
; CHECK-NEXT: store i16* [[PTR:%.*]], i16** [[PTR_SPILL_ADDR]], align 8
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i16* [[PTR]] to i8*
; CHECK-NEXT: [[TMP3:%.*]] = insertvalue { i8*, i8* } { i8* bitcast ({ i8*, i8* } (i8*, i1)* @g.resume.0 to i8*), i8* undef }, i8* [[TMP2]], 1
; CHECK-NEXT: ret { i8*, i8* } [[TMP3]]
;
; CORO-LABEL: @g(
; CORO-NEXT: entry:
; CORO-NEXT: [[TMP0:%.*]] = call i8* @allocate(i32 8)
; CORO-NEXT: [[TMP1:%.*]] = bitcast i8* [[BUFFER:%.*]] to i8**
; CORO-NEXT: store i8* [[TMP0]], i8** [[TMP1]], align 8
; CORO-NEXT: [[FRAMEPTR:%.*]] = bitcast i8* [[TMP0]] to %g.Frame*
; CORO-NEXT: [[PTR_SPILL_ADDR:%.*]] = getelementptr inbounds [[G_FRAME:%.*]], %g.Frame* [[FRAMEPTR]], i32 0, i32 0
; CORO-NEXT: store i16* [[PTR:%.*]], i16** [[PTR_SPILL_ADDR]], align 8
; CORO-NEXT: [[PTR_RELOAD_ADDR:%.*]] = getelementptr inbounds [[G_FRAME]], %g.Frame* [[FRAMEPTR]], i32 0, i32 0
; CORO-NEXT: [[PTR_RELOAD:%.*]] = load i16*, i16** [[PTR_RELOAD_ADDR]], align 8
; CORO-NEXT: [[PTR2:%.*]] = bitcast i16* [[PTR_RELOAD]] to i8*
; CORO-NEXT: [[TMP2:%.*]] = bitcast { i8*, i8* } (i8*, i1)* @g.resume.0 to i8*
; CORO-NEXT: [[TMP3:%.*]] = insertvalue { i8*, i8* } undef, i8* [[TMP2]], 0
; CORO-NEXT: [[TMP4:%.*]] = insertvalue { i8*, i8* } [[TMP3]], i8* [[PTR2]], 1
; CORO-NEXT: ret { i8*, i8* } [[TMP4]]
;
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast ({ i8*, i8* } (i8*, i1)* @g_prototype to i8*), i8* bitcast (i8* (i32)* @allocate to i8*), i8* bitcast (void (i8*)* @deallocate to i8*))
%hdl = call i8* @llvm.coro.begin(token %id, i8* null)
br label %loop
loop:
%ptr2 = bitcast i16* %ptr to i8*
%unwind0 = call i1 (...) @llvm.coro.suspend.retcon.i1(i8* %ptr2)
br i1 %unwind0, label %cleanup, label %resume
resume:
br label %loop
cleanup:
call i1 @llvm.coro.end(i8* %hdl, i1 0)
unreachable
}
define i8* @nosuspend(i8* %buffer, i32 %n) {
; CHECK-LABEL: @nosuspend(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: store i32 [[N:%.*]], i32* [[A]], align 4
; CHECK-NEXT: call void @use_var_ptr(i32* nonnull [[A]])
; CHECK-NEXT: [[AL:%.*]] = load i32, i32* [[A]], align 4
; CHECK-NEXT: call void @use_var(i32 [[AL]])
; CHECK-NEXT: ret i8* null
;
; CORO-LABEL: @nosuspend(
; CORO-NEXT: entry:
; CORO-NEXT: [[FRAMEPTR:%.*]] = bitcast i8* undef to %nosuspend.Frame*
; CORO-NEXT: [[A:%.*]] = alloca i32, align 4
; CORO-NEXT: store i32 [[N:%.*]], i32* [[A]], align 4
; CORO-NEXT: call void @use_var_ptr(i32* [[A]])
; CORO-NEXT: [[AL:%.*]] = load i32, i32* [[A]], align 4
; CORO-NEXT: call void @use_var(i32 [[AL]])
; CORO-NEXT: ret i8* null
;
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast (i8* (i8*, i1)* @prototype to i8*), i8* bitcast (i8* (i32)* @allocate to i8*), i8* bitcast (void (i8*)* @deallocate to i8*))
%hdl = call i8* @llvm.coro.begin(token %id, i8* null)
%a = alloca i32
store i32 %n, i32* %a
br label %cleanup
cleanup:
call void @use_var_ptr(i32* %a)
%al = load i32, i32* %a
call void @use_var(i32 %al)
call i1 @llvm.coro.end(i8* %hdl, i1 0)
ret i8* %hdl
}
declare token @llvm.coro.id.retcon(i32, i32, i8*, i8*, i8*, i8*)
declare i8* @llvm.coro.begin(token, i8*)
declare i1 @llvm.coro.suspend.retcon.i1(...)
declare i1 @llvm.coro.end(i8*, i1)
declare i8* @llvm.coro.prepare.retcon(i8*)
declare void @use_var(i32)
declare void @use_var_ptr(i32*)
declare i8* @prototype(i8*, i1 zeroext)
declare {i8*,i8*} @g_prototype(i8*, i1 zeroext)
declare noalias i8* @allocate(i32 %size)
declare void @deallocate(i8* %ptr)
declare void @print(i32)
|
