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| 1 | +; Tests that the number elided coroutine is record correctly. |
| 2 | +; REQUIRES: asserts |
| 3 | +; |
| 4 | +; RUN: opt < %s -S \ |
| 5 | +; RUN: -passes='cgscc(repeat<2>(inline,function(coro-elide,dce)))' -stats 2>&1 \ |
| 6 | +; RUN: | FileCheck %s |
| 7 | + |
| 8 | +; CHECK: 2 coro-elide - The # of coroutine get elided. |
| 9 | + |
| 10 | +declare void @print(i32) nounwind |
| 11 | + |
| 12 | +; resume part of the coroutine |
| 13 | +define fastcc void @f.resume(i8*) { |
| 14 | + tail call void @print(i32 0) |
| 15 | + ret void |
| 16 | +} |
| 17 | + |
| 18 | +; destroy part of the coroutine |
| 19 | +define fastcc void @f.destroy(i8*) { |
| 20 | + tail call void @print(i32 1) |
| 21 | + ret void |
| 22 | +} |
| 23 | + |
| 24 | +; cleanup part of the coroutine |
| 25 | +define fastcc void @f.cleanup(i8*) { |
| 26 | + tail call void @print(i32 2) |
| 27 | + ret void |
| 28 | +} |
| 29 | + |
| 30 | +@f.resumers = internal constant [3 x void (i8*)*] [void (i8*)* @f.resume, |
| 31 | + void (i8*)* @f.destroy, |
| 32 | + void (i8*)* @f.cleanup] |
| 33 | + |
| 34 | +; a coroutine start function |
| 35 | +define i8* @f() { |
| 36 | +entry: |
| 37 | + %id = call token @llvm.coro.id(i32 0, i8* null, |
| 38 | + i8* bitcast (i8*()* @f to i8*), |
| 39 | + i8* bitcast ([3 x void (i8*)*]* @f.resumers to i8*)) |
| 40 | + %alloc = call i1 @llvm.coro.alloc(token %id) |
| 41 | + %hdl = call i8* @llvm.coro.begin(token %id, i8* null) |
| 42 | + ret i8* %hdl |
| 43 | +} |
| 44 | + |
| 45 | +define void @callResume() { |
| 46 | +entry: |
| 47 | + %hdl = call i8* @f() |
| 48 | + |
| 49 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 50 | + %1 = bitcast i8* %0 to void (i8*)* |
| 51 | + call fastcc void %1(i8* %hdl) |
| 52 | + |
| 53 | + %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1) |
| 54 | + %3 = bitcast i8* %2 to void (i8*)* |
| 55 | + call fastcc void %3(i8* %hdl) |
| 56 | + |
| 57 | + ret void |
| 58 | +} |
| 59 | + |
| 60 | +define void @callResumeMultiRet(i1 %b) { |
| 61 | +entry: |
| 62 | + %hdl = call i8* @f() |
| 63 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 64 | + %1 = bitcast i8* %0 to void (i8*)* |
| 65 | + call fastcc void %1(i8* %hdl) |
| 66 | + br i1 %b, label %destroy, label %ret |
| 67 | + |
| 68 | +destroy: |
| 69 | + %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1) |
| 70 | + %3 = bitcast i8* %2 to void (i8*)* |
| 71 | + call fastcc void %3(i8* %hdl) |
| 72 | + ret void |
| 73 | + |
| 74 | +ret: |
| 75 | + ret void |
| 76 | +} |
| 77 | + |
| 78 | +define void @callResumeMultiRetDommmed(i1 %b) { |
| 79 | +entry: |
| 80 | + %hdl = call i8* @f() |
| 81 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 82 | + %1 = bitcast i8* %0 to void (i8*)* |
| 83 | + call fastcc void %1(i8* %hdl) |
| 84 | + %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1) |
| 85 | + %3 = bitcast i8* %2 to void (i8*)* |
| 86 | + call fastcc void %3(i8* %hdl) |
| 87 | + br i1 %b, label %destroy, label %ret |
| 88 | + |
| 89 | +destroy: |
| 90 | + ret void |
| 91 | + |
| 92 | +ret: |
| 93 | + ret void |
| 94 | +} |
| 95 | + |
| 96 | +define void @eh() personality i8* null { |
| 97 | +entry: |
| 98 | + %hdl = call i8* @f() |
| 99 | + |
| 100 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 101 | + %1 = bitcast i8* %0 to void (i8*)* |
| 102 | + invoke void %1(i8* %hdl) |
| 103 | + to label %cont unwind label %ehcleanup |
| 104 | +cont: |
| 105 | + ret void |
| 106 | + |
| 107 | +ehcleanup: |
| 108 | + %tok = cleanuppad within none [] |
| 109 | + cleanupret from %tok unwind to caller |
| 110 | +} |
| 111 | + |
| 112 | +; no devirtualization here, since coro.begin info parameter is null |
| 113 | +define void @no_devirt_info_null() { |
| 114 | +entry: |
| 115 | + %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null) |
| 116 | + %hdl = call i8* @llvm.coro.begin(token %id, i8* null) |
| 117 | + |
| 118 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 119 | + %1 = bitcast i8* %0 to void (i8*)* |
| 120 | + call fastcc void %1(i8* %hdl) |
| 121 | + |
| 122 | + %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1) |
| 123 | + %3 = bitcast i8* %2 to void (i8*)* |
| 124 | + call fastcc void %3(i8* %hdl) |
| 125 | + |
| 126 | + ret void |
| 127 | +} |
| 128 | + |
| 129 | +; no devirtualization here, since coro.begin is not visible |
| 130 | +define void @no_devirt_no_begin(i8* %hdl) { |
| 131 | +entry: |
| 132 | + |
| 133 | + %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0) |
| 134 | + %1 = bitcast i8* %0 to void (i8*)* |
| 135 | + call fastcc void %1(i8* %hdl) |
| 136 | + |
| 137 | + %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1) |
| 138 | + %3 = bitcast i8* %2 to void (i8*)* |
| 139 | + call fastcc void %3(i8* %hdl) |
| 140 | + |
| 141 | + ret void |
| 142 | +} |
| 143 | + |
| 144 | +declare token @llvm.coro.id(i32, i8*, i8*, i8*) |
| 145 | +declare i8* @llvm.coro.begin(token, i8*) |
| 146 | +declare i8* @llvm.coro.frame() |
| 147 | +declare i8* @llvm.coro.subfn.addr(i8*, i8) |
| 148 | +declare i1 @llvm.coro.alloc(token) |
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