54 lines
1.2 KiB
LLVM
54 lines
1.2 KiB
LLVM
; REQUIRES: asserts
|
|
; RUN: opt -S -instsimplify -hotcoldsplit -hotcoldsplit-threshold=-1 -debug < %s 2>&1 | FileCheck %s
|
|
; RUN: opt -instcombine -hotcoldsplit -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 %0)
|
|
; CHECK-LABEL: newFuncRoot:
|
|
; CHECK: %1 = icmp eq i64 %0, 0
|
|
; CHECK-NOT: call void @llvm.assume
|
|
|
|
define void @f() {
|
|
entry:
|
|
%0 = getelementptr inbounds %a, %a* null, i64 0, i32 1
|
|
br label %label
|
|
|
|
label:
|
|
%1 = bitcast i64* %0 to %b**
|
|
%2 = load %b*, %b** %1, align 8
|
|
%3 = getelementptr inbounds %b, %b* %2, i64 undef, i32 0
|
|
%4 = load i64, i64* %3, align 8
|
|
%5 = icmp ugt i64 %4, 1
|
|
br i1 %5, label %if.then, label %if.else
|
|
|
|
if.then:
|
|
unreachable
|
|
|
|
if.else:
|
|
call void @g(i8* undef)
|
|
%6 = load i64, i64* undef, align 8
|
|
%7 = and i64 %6, -16
|
|
%8 = inttoptr i64 %7 to i8*
|
|
%9 = icmp eq i64 %4, 0
|
|
call void @llvm.assume(i1 %9)
|
|
unreachable
|
|
}
|
|
|
|
declare void @g(i8*)
|
|
|
|
declare void @llvm.assume(i1)
|
|
|