; RUN: opt -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 { i8* } declare void @f(<{ %struct.S }>* 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. ; ; CHECK-LABEL: @test ; CHECK: alloca i8 ; CHECK: stacksave ; CHECK: alloca inalloca ; CHECK-NOT: alloca i8 ; Check that store instructions are hoisted. ; CHECK: store i8 ; CHECK-NOT: store i8 ; CHECK: stackrestore define void @test(i1 %b) { entry: %x = alloca i8 %inalloca.save = call i8* @llvm.stacksave() %argmem = alloca inalloca <{ %struct.S }>, align 4 %0 = getelementptr inbounds <{ %struct.S }>, <{ %struct.S }>* %argmem, i32 0, i32 0 br i1 %b, label %true, label %false true: %p = getelementptr inbounds %struct.S, %struct.S* %0, i32 0, i32 0 store i8* %x, i8** %p, align 4 br label %exit false: %p2 = getelementptr inbounds %struct.S, %struct.S* %0, i32 0, i32 0 store i8* %x, i8** %p2, align 4 br label %exit exit: call void @f(<{ %struct.S }>* inalloca(<{ %struct.S }>) %argmem) call void @llvm.stackrestore(i8* %inalloca.save) ret void } declare i8* @llvm.stacksave() declare void @llvm.stackrestore(i8*)