llvm-project/llvm/test/Transforms/InstCombine/ptr-int-cast.ll

30 lines
674 B
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
define i1 @test1(i32 *%x) nounwind {
entry:
; CHECK: test1
; CHECK: ptrtoint i32* %x to i64
%tmp = ptrtoint i32* %x to i1
ret i1 %tmp
}
define i32* @test2(i128 %x) nounwind {
entry:
; CHECK: test2
; CHECK: inttoptr i64 %tmp1 to i32*
%tmp = inttoptr i128 %x to i32*
ret i32* %tmp
}
; PR3574
; CHECK: f0
; CHECK: %tmp = zext i32 %a0 to i64
; CHECK: ret i64 %tmp
define i64 @f0(i32 %a0) nounwind {
%t0 = inttoptr i32 %a0 to i8*
%t1 = ptrtoint i8* %t0 to i64
ret i64 %t1
}