| ; REQUIRES: asserts |
| ; RUN: opt -S -passes='function(instsimplify),hotcoldsplit' -hotcoldsplit-threshold=-1 -debug < %s 2>&1 | FileCheck %s |
| ; RUN: opt -passes='function(instcombine),hotcoldsplit,function(instsimplify)' %s -o /dev/null |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64" |
| |
| %a = type { i64, i64 } |
| %b = type { i64 } |
| |
| ; CHECK: @f |
| ; CHECK-LABEL: codeRepl: |
| ; CHECK-NOT: @llvm.assume |
| ; CHECK: } |
| ; CHECK: declare {{.*}}@llvm.assume |
| ; CHECK: define {{.*}}@f.cold.1() |
| ; CHECK-LABEL: newFuncRoot: |
| ; CHECK: } |
| ; CHECK: define {{.*}}@f.cold.2(i64 %load1) |
| ; CHECK-LABEL: newFuncRoot: |
| ; CHECK: %cmp1 = icmp eq i64 %load1, 0 |
| ; CHECK-NOT: call void @llvm.assume |
| |
| define void @f() { |
| entry: |
| %i = getelementptr inbounds %a, ptr null, i64 0, i32 1 |
| br label %label |
| |
| label: ; preds = %entry |
| %load0 = load ptr, ptr %i, align 8 |
| %i3 = getelementptr inbounds %b, ptr %load0, i64 undef, i32 0 |
| %load1 = load i64, ptr %i3, align 8 |
| %cmp0 = icmp ugt i64 %load1, 1 |
| br i1 %cmp0, label %if.then, label %if.else |
| |
| if.then: ; preds = %label |
| unreachable |
| |
| if.else: ; preds = %label |
| call void @g(ptr undef) |
| %load2 = load i64, ptr undef, align 8 |
| %i7 = and i64 %load2, -16 |
| %i8 = inttoptr i64 %i7 to ptr |
| %cmp1 = icmp eq i64 %load1, 0 |
| call void @llvm.assume(i1 %cmp1) |
| unreachable |
| } |
| |
| declare void @g(ptr) |
| |
| declare void @llvm.assume(i1 noundef) #0 |
| |
| attributes #0 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) } |
