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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=gvn-hoist -S < %s | FileCheck %s
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc18.0.0"
%struct.S = type { ptr, ptr }
declare void @f(ptr inalloca(<{ %struct.S }>))
; Check that we don't clone the %x alloca and insert it in the live range of
; %argmem, which would break the inalloca contract.
define void @test(i1 %b) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[X:%.*]] = alloca i8, align 1
; CHECK-NEXT: [[INALLOCA_SAVE:%.*]] = call ptr @llvm.stacksave.p0()
; CHECK-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_S:%.*]] }>, align 4
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1
; CHECK-NEXT: store ptr [[X]], ptr [[TMP0]], align 4
; CHECK-NEXT: br i1 [[B:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]]
; CHECK: true:
; CHECK-NEXT: [[P:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1
; CHECK-NEXT: br label [[EXIT:%.*]]
; CHECK: false:
; CHECK-NEXT: [[P2:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: call void @f(ptr inalloca(<{ [[STRUCT_S]] }>) [[ARGMEM]])
; CHECK-NEXT: call void @llvm.stackrestore.p0(ptr [[INALLOCA_SAVE]])
; CHECK-NEXT: ret void
;
entry:
%x = alloca i8
%inalloca.save = call ptr @llvm.stacksave()
%argmem = alloca inalloca <{ %struct.S }>, align 4
br i1 %b, label %true, label %false
true:
%p = getelementptr inbounds %struct.S, ptr %argmem, i32 0, i32 1
store ptr %x, ptr %p, align 4
br label %exit
false:
%p2 = getelementptr inbounds %struct.S, ptr %argmem, i32 0, i32 1
store ptr %x, ptr %p2, align 4
br label %exit
exit:
call void @f(ptr inalloca(<{ %struct.S }>) %argmem)
call void @llvm.stackrestore(ptr %inalloca.save)
ret void
}
declare ptr @llvm.stacksave()
declare void @llvm.stackrestore(ptr)
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