mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-28 17:23:27 +00:00
3c97f7af9e
knows about intrinsic functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118410 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.4 KiB
LLVM
65 lines
2.4 KiB
LLVM
; RUN: opt < %s -basicaa -functionattrs -S | FileCheck %s
|
|
|
|
%struct.X = type { i32*, i32* }
|
|
|
|
declare i32 @g(i32*) readnone
|
|
|
|
define i32 @f() {
|
|
; CHECK: @f() readnone
|
|
%x = alloca i32 ; <i32*> [#uses=2]
|
|
store i32 0, i32* %x
|
|
%y = call i32 @g(i32* %x) ; <i32> [#uses=1]
|
|
ret i32 %y
|
|
}
|
|
|
|
define i32 @foo() nounwind {
|
|
; CHECK: @foo() nounwind readonly
|
|
entry:
|
|
%y = alloca %struct.X ; <%struct.X*> [#uses=2]
|
|
%x = alloca %struct.X ; <%struct.X*> [#uses=2]
|
|
%j = alloca i32 ; <i32*> [#uses=2]
|
|
%i = alloca i32 ; <i32*> [#uses=2]
|
|
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
|
|
store i32 0, i32* %i, align 4
|
|
store i32 1, i32* %j, align 4
|
|
%0 = getelementptr inbounds %struct.X* %y, i32 0, i32 0 ; <i32**> [#uses=1]
|
|
store i32* %i, i32** %0, align 8
|
|
%1 = getelementptr inbounds %struct.X* %x, i32 0, i32 1 ; <i32**> [#uses=1]
|
|
store i32* %j, i32** %1, align 8
|
|
%x1 = bitcast %struct.X* %x to i8* ; <i8*> [#uses=2]
|
|
%y2 = bitcast %struct.X* %y to i8* ; <i8*> [#uses=1]
|
|
call void @llvm.memcpy.i64(i8* %x1, i8* %y2, i64 8, i32 1)
|
|
%2 = bitcast i8* %x1 to i32** ; <i32**> [#uses=1]
|
|
%3 = load i32** %2, align 8 ; <i32*> [#uses=1]
|
|
%4 = load i32* %3, align 4 ; <i32> [#uses=1]
|
|
br label %return
|
|
|
|
return: ; preds = %entry
|
|
ret i32 %4
|
|
}
|
|
|
|
define i32 @t(i32 %a, i32 %b, i32 %c) nounwind {
|
|
; CHECK: @t(i32 %a, i32 %b, i32 %c) nounwind readnone
|
|
entry:
|
|
%a.addr = alloca i32 ; <i32*> [#uses=3]
|
|
%c.addr = alloca i32 ; <i32*> [#uses=2]
|
|
store i32 %a, i32* %a.addr
|
|
store i32 %c, i32* %c.addr
|
|
%tmp = load i32* %a.addr ; <i32> [#uses=1]
|
|
%tobool = icmp ne i32 %tmp, 0 ; <i1> [#uses=1]
|
|
br i1 %tobool, label %if.then, label %if.else
|
|
|
|
if.then: ; preds = %entry
|
|
br label %if.end
|
|
|
|
if.else: ; preds = %entry
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
%p.0 = phi i32* [ %a.addr, %if.then ], [ %c.addr, %if.else ] ; <i32*> [#uses=1]
|
|
%tmp2 = load i32* %p.0 ; <i32> [#uses=1]
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
declare void @llvm.memcpy.i64(i8* nocapture, i8* nocapture, i64, i32) nounwind
|