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TheRock/compiler/amd-llvm/llvm/test/Transforms/SimplifyCFG/unreachable-multi-basic-block-funclet.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=simplifycfg -S < %s | FileCheck %s
; cleanuppad/cleanupret
define void @unreachable_cleanuppad_linear(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @unreachable_cleanuppad_linear(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
ret void
funclet:
%cleanuppad = cleanuppad within none []
br label %funclet_end
funclet_end:
cleanupret from %cleanuppad unwind to caller
}
define void @unreachable_cleanuppad_linear_middle_block(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @unreachable_cleanuppad_linear_middle_block(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
ret void
funclet:
%cleanuppad = cleanuppad within none []
br label %middle_block
middle_block:
%tmp1 = add i64 %shapes.1, 42
br label %funclet_end
funclet_end:
cleanupret from %cleanuppad unwind to caller
}
define void @unreachable_cleanuppad_multiple_predecessors(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @unreachable_cleanuppad_multiple_predecessors(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
ret void
funclet:
%cleanuppad = cleanuppad within none []
switch i64 %shapes.1, label %otherwise [ i64 0, label %one
i64 1, label %two
i64 42, label %three ]
one:
br label %funclet_end
two:
br label %funclet_end
three:
br label %funclet_end
otherwise:
br label %funclet_end
funclet_end:
cleanupret from %cleanuppad unwind to caller
}
; catchpad/catchret
define void @unreachable_catchpad_linear(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @unreachable_catchpad_linear(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
ret void
dispatch:
%cs = catchswitch within none [label %funclet] unwind to caller
funclet:
%cleanuppad = catchpad within %cs []
br label %funclet_end
funclet_end:
catchret from %cleanuppad to label %unreachable
unreachable:
unreachable
}
define void @unreachable_catchpad_multiple_predecessors(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @unreachable_catchpad_multiple_predecessors(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
ret void
dispatch:
%cs = catchswitch within none [label %funclet] unwind to caller
funclet:
%cleanuppad = catchpad within %cs []
switch i64 %shapes.1, label %otherwise [ i64 0, label %one
i64 1, label %two
i64 42, label %three ]
one:
br label %funclet_end
two:
br label %funclet_end
three:
br label %funclet_end
otherwise:
br label %funclet_end
funclet_end:
catchret from %cleanuppad to label %unreachable
unreachable:
unreachable
}
; Issue reproducer
define void @gh148052(i64 %shapes.1) personality ptr null {
; CHECK-LABEL: define void @gh148052(
; CHECK-SAME: i64 [[SHAPES_1:%.*]]) personality ptr null {
; CHECK-NEXT: [[START:.*:]]
; CHECK-NEXT: [[_7:%.*]] = icmp ult i64 0, [[SHAPES_1]]
; CHECK-NEXT: call void @llvm.assume(i1 [[_7]])
; CHECK-NEXT: ret void
;
start:
%_7 = icmp ult i64 0, %shapes.1
br i1 %_7, label %bb1, label %panic
bb1:
%_11 = icmp ult i64 0, %shapes.1
br i1 %_11, label %bb3, label %panic1
panic:
unreachable
bb3:
ret void
panic1:
invoke void @func(i64 0, i64 0, ptr null)
to label %unreachable unwind label %funclet_bb14
funclet_bb14:
%cleanuppad = cleanuppad within none []
br label %bb13
unreachable:
unreachable
bb10:
cleanupret from %cleanuppad5 unwind to caller
funclet_bb10:
%cleanuppad5 = cleanuppad within none []
br label %bb10
bb13:
cleanupret from %cleanuppad unwind label %funclet_bb10
}
%struct.foo = type { ptr, %struct.eggs, ptr }
%struct.eggs = type { ptr, ptr, ptr }
declare x86_thiscallcc ptr @quux(ptr, ptr, i32)
define x86_thiscallcc ptr @baz(ptr %arg, ptr %arg1, ptr %arg2, i1 %arg3, ptr %arg4) personality ptr null {
; CHECK-LABEL: define x86_thiscallcc ptr @baz(
; CHECK-SAME: ptr [[ARG:%.*]], ptr [[ARG1:%.*]], ptr [[ARG2:%.*]], i1 [[ARG3:%.*]], ptr [[ARG4:%.*]]) personality ptr null {
; CHECK-NEXT: [[BB:.*:]]
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [2 x %struct.foo], align 4
; CHECK-NEXT: [[INVOKE:%.*]] = call x86_thiscallcc ptr @quux(ptr null, ptr null, i32 0) #[[ATTR1:[0-9]+]]
; CHECK-NEXT: unreachable
;
bb:
%alloca = alloca [2 x %struct.foo], align 4
%invoke = invoke x86_thiscallcc ptr @quux(ptr null, ptr null, i32 0)
to label %bb5 unwind label %bb10
bb5: ; preds = %bb
%getelementptr = getelementptr i8, ptr %arg, i32 20
%call = call x86_thiscallcc ptr null(ptr null, ptr null, i32 0)
br label %bb6
bb6: ; preds = %bb10, %bb5
%phi = phi ptr [ null, %bb10 ], [ null, %bb5 ]
ret ptr %phi
bb7: ; No predecessors!
%cleanuppad = cleanuppad within none []
%getelementptr8 = getelementptr i8, ptr %arg2, i32 -20
%icmp = icmp eq ptr %arg, null
br label %bb9
bb9: ; preds = %bb7
cleanupret from %cleanuppad unwind label %bb10
bb10: ; preds = %bb9, %bb
%phi11 = phi ptr [ %arg, %bb9 ], [ null, %bb ]
%cleanuppad12 = cleanuppad within none []
%getelementptr13 = getelementptr i8, ptr %phi11, i32 -20
store i32 0, ptr %phi11, align 4
br label %bb6
}
declare void @func(i64, i64, ptr)
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