117 lines
4.8 KiB
LLVM
117 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
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; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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declare token @llvm.call.preallocated.setup(i32)
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declare ptr @llvm.call.preallocated.arg(token, i32)
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declare i32 @__CxxFrameHandler3(...)
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; Don't touch functions with any musttail calls
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define internal i32 @preallocated_musttail(ptr preallocated(i32) %p) {
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; CHECK-LABEL: define {{[^@]+}}@preallocated_musttail
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; CHECK-SAME: (ptr preallocated(i32) [[P:%.*]]) unnamed_addr {
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; CHECK-NEXT: [[RV:%.*]] = load i32, ptr [[P]], align 4
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; CHECK-NEXT: ret i32 [[RV]]
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;
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%rv = load i32, ptr %p
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ret i32 %rv
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}
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define i32 @call_preallocated_musttail(ptr preallocated(i32) %a) {
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; CHECK-LABEL: define {{[^@]+}}@call_preallocated_musttail
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; CHECK-SAME: (ptr preallocated(i32) [[A:%.*]]) local_unnamed_addr {
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; CHECK-NEXT: [[R:%.*]] = musttail call i32 @preallocated_musttail(ptr preallocated(i32) [[A]])
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; CHECK-NEXT: ret i32 [[R]]
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;
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%r = musttail call i32 @preallocated_musttail(ptr preallocated(i32) %a)
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ret i32 %r
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}
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define i32 @call_preallocated_musttail_without_musttail() {
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; CHECK-LABEL: define {{[^@]+}}@call_preallocated_musttail_without_musttail() local_unnamed_addr {
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; CHECK-NEXT: [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 1)
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; CHECK-NEXT: [[N:%.*]] = call ptr @llvm.call.preallocated.arg(token [[C]], i32 0) #[[ATTR1:[0-9]+]]
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; CHECK-NEXT: [[R:%.*]] = call i32 @preallocated_musttail(ptr preallocated(i32) [[N]]) [ "preallocated"(token [[C]]) ]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%c = call token @llvm.call.preallocated.setup(i32 1)
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%N = call ptr @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32)
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%r = call i32 @preallocated_musttail(ptr preallocated(i32) %N) ["preallocated"(token %c)]
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ret i32 %r
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}
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; Check that only one alloca per preallocated arg
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define internal i32 @preallocated(ptr preallocated(i32) %a) {
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; CHECK-LABEL: define {{[^@]+}}@preallocated
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; CHECK-SAME: (ptr [[A:%.*]]) unnamed_addr {
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; CHECK-NEXT: [[RV:%.*]] = load i32, ptr [[A]], align 4
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; CHECK-NEXT: ret i32 [[RV]]
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;
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%rv = load i32, ptr %a
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ret i32 %rv
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}
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declare void @foo(ptr)
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define i32 @call_preallocated_multiple_args() {
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; CHECK-LABEL: define {{[^@]+}}@call_preallocated_multiple_args() local_unnamed_addr {
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; CHECK-NEXT: [[TMP1:%.*]] = call ptr @llvm.stacksave.p0()
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; CHECK-NEXT: [[PAARG:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @foo(ptr [[PAARG]])
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; CHECK-NEXT: call void @foo(ptr [[PAARG]])
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; CHECK-NEXT: call void @foo(ptr [[PAARG]])
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; CHECK-NEXT: [[R:%.*]] = call fastcc i32 @preallocated(ptr [[PAARG]])
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; CHECK-NEXT: call void @llvm.stackrestore.p0(ptr [[TMP1]])
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; CHECK-NEXT: ret i32 [[R]]
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;
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%c = call token @llvm.call.preallocated.setup(i32 1)
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%a1 = call ptr @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32)
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call void @foo(ptr %a1)
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%a2 = call ptr @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32)
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call void @foo(ptr %a2)
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%a3 = call ptr @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32)
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call void @foo(ptr %a3)
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%r = call i32 @preallocated(ptr preallocated(i32) %a3) ["preallocated"(token %c)]
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ret i32 %r
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}
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; Don't touch functions with any invokes
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define internal i32 @preallocated_invoke(ptr preallocated(i32) %p) {
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; CHECK-LABEL: define {{[^@]+}}@preallocated_invoke
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; CHECK-SAME: (ptr preallocated(i32) [[P:%.*]]) unnamed_addr {
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; CHECK-NEXT: [[RV:%.*]] = load i32, ptr [[P]], align 4
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; CHECK-NEXT: ret i32 [[RV]]
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;
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%rv = load i32, ptr %p
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ret i32 %rv
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}
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define i32 @call_preallocated_invoke() personality ptr @__CxxFrameHandler3 {
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; CHECK-LABEL: define {{[^@]+}}@call_preallocated_invoke() local_unnamed_addr personality ptr @__CxxFrameHandler3 {
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; CHECK-NEXT: [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 1)
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; CHECK-NEXT: [[A:%.*]] = call ptr @llvm.call.preallocated.arg(token [[C]], i32 0) #[[ATTR1]]
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; CHECK-NEXT: [[R:%.*]] = invoke i32 @preallocated_invoke(ptr preallocated(i32) [[A]]) [ "preallocated"(token [[C]]) ]
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; CHECK-NEXT: to label [[CONTA:%.*]] unwind label [[CONTB:%.*]]
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; CHECK: conta:
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; CHECK-NEXT: ret i32 [[R]]
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; CHECK: contb:
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; CHECK-NEXT: [[S:%.*]] = catchswitch within none [label %catch] unwind to caller
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; CHECK: catch:
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; CHECK-NEXT: [[P:%.*]] = catchpad within [[S]] []
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; CHECK-NEXT: catchret from [[P]] to label [[CONT:%.*]]
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; CHECK: cont:
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; CHECK-NEXT: ret i32 42
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;
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%c = call token @llvm.call.preallocated.setup(i32 1)
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%a = call ptr @llvm.call.preallocated.arg(token %c, i32 0) preallocated(i32)
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%r = invoke i32 @preallocated_invoke(ptr preallocated(i32) %a) ["preallocated"(token %c)]
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to label %conta unwind label %contb
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conta:
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ret i32 %r
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contb:
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%s = catchswitch within none [label %catch] unwind to caller
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catch:
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%p = catchpad within %s []
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catchret from %p to label %cont
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cont:
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ret i32 42
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}
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