| ; Check that we can handle edge splits leading into a landingpad |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; CHECK-LABEL: define internal fastcc void @g.resume( |
| define void @g(i1 %cond, i32 %x, i32 %y) "coroutine.presplit"="1" personality i32 0 { |
| entry: |
| %id = call token @llvm.coro.id(i32 16, i8* null, i8* null, i8* null) |
| %size = tail call i64 @llvm.coro.size.i64() |
| %alloc = call i8* @malloc(i64 %size) |
| %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc) |
| %sp = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %sp, label %coro.ret [ |
| i8 0, label %resume |
| i8 1, label %cleanup |
| ] |
| |
| resume: |
| br i1 %cond, label %invoke1, label %invoke2 |
| |
| invoke1: |
| invoke void @may_throw1() |
| to label %unreach unwind label %pad.with.phi |
| invoke2: |
| invoke void @may_throw2() |
| to label %unreach unwind label %pad.with.phi |
| |
| ; Verify that we created cleanuppads on every edge and inserted a reload of the spilled value |
| |
| ; CHECK: pad.with.phi.from.invoke2: |
| ; CHECK: %0 = cleanuppad within none [] |
| ; CHECK: %y.reload.addr = getelementptr inbounds %g.Frame, %g.Frame* %FramePtr, i32 0, i32 3 |
| ; CHECK: %y.reload = load i32, i32* %y.reload.addr |
| ; CHECK: cleanupret from %0 unwind label %pad.with.phi |
| |
| ; CHECK: pad.with.phi.from.invoke1: |
| ; CHECK: %1 = cleanuppad within none [] |
| ; CHECK: %x.reload.addr = getelementptr inbounds %g.Frame, %g.Frame* %FramePtr, i32 0, i32 2 |
| ; CHECK: %x.reload = load i32, i32* %x.reload.addr |
| ; CHECK: cleanupret from %1 unwind label %pad.with.phi |
| |
| ; CHECK: pad.with.phi: |
| ; CHECK: %val = phi i32 [ %x.reload, %pad.with.phi.from.invoke1 ], [ %y.reload, %pad.with.phi.from.invoke2 ] |
| ; CHECK: %tok = cleanuppad within none [] |
| ; CHECK: call void @use_val(i32 %val) |
| ; CHECK: cleanupret from %tok unwind to caller |
| |
| pad.with.phi: |
| %val = phi i32 [ %x, %invoke1 ], [ %y, %invoke2 ] |
| %tok = cleanuppad within none [] |
| call void @use_val(i32 %val) |
| cleanupret from %tok unwind to caller |
| |
| cleanup: ; preds = %invoke.cont15, %if.else, %if.then, %ehcleanup21, %init.suspend |
| %mem = call i8* @llvm.coro.free(token %id, i8* %hdl) |
| call void @free(i8* %mem) |
| br label %coro.ret |
| |
| coro.ret: |
| call i1 @llvm.coro.end(i8* null, i1 false) |
| ret void |
| |
| unreach: |
| unreachable |
| } |
| |
| ; Function Attrs: argmemonly nounwind readonly |
| declare token @llvm.coro.id(i32, i8* readnone, i8* nocapture readonly, i8*) |
| declare noalias i8* @malloc(i64) |
| declare i64 @llvm.coro.size.i64() |
| declare i8* @llvm.coro.begin(token, i8* writeonly) |
| |
| ; Function Attrs: nounwind |
| declare token @llvm.coro.save(i8*) |
| declare i8 @llvm.coro.suspend(token, i1) |
| |
| ; Function Attrs: argmemonly nounwind |
| declare void @may_throw1() |
| declare void @may_throw2() |
| |
| declare i8* @__cxa_begin_catch(i8*) |
| |
| declare void @use_val(i32) |
| declare void @__cxa_end_catch() |
| |
| ; Function Attrs: nounwind |
| declare i1 @llvm.coro.end(i8*, i1) |
| declare void @free(i8*) |
| declare i8* @llvm.coro.free(token, i8* nocapture readonly) |