; RUN: opt -instcombine -S < %s | FileCheck %s | |
target datalayout = "p:64:64:64" | |
define i64* @test1(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test1( | |
; CHECK: load i64*, i64** | |
; CHECK: ret | |
%a = bitcast i8* %x to i64* | |
%b = load i64, i64* %a | |
%c = inttoptr i64 %b to i64* | |
ret i64* %c | |
} | |
define i32* @test2(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test2( | |
; CHECK: load i32, i32* | |
; CHECK: ret | |
%a = bitcast i8* %x to i32* | |
%b = load i32, i32* %a | |
%c = inttoptr i32 %b to i32* | |
ret i32* %c | |
} | |
define i64* @test3(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test3( | |
; CHECK: load i32, i32* | |
; CHECK: ret | |
%a = bitcast i8* %x to i32* | |
%b = load i32, i32* %a | |
%c = inttoptr i32 %b to i64* | |
ret i64* %c | |
} | |
define i64 @test4(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test4( | |
; CHECK: load i64, i64* | |
; CHECK: ret | |
%a = bitcast i8* %x to i64** | |
%b = load i64*, i64** %a | |
%c = ptrtoint i64* %b to i64 | |
ret i64 %c | |
} | |
define i32 @test5(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test5( | |
; CHECK: load i64, i64* | |
; CHECK: trunc | |
; CHECK: ret | |
%a = bitcast i8* %x to i32** | |
%b = load i32*, i32** %a | |
%c = ptrtoint i32* %b to i32 | |
ret i32 %c | |
} | |
define i64 @test6(i8* %x) { | |
entry: | |
; CHECK-LABEL: @test6( | |
; CHECK: load i64, i64* | |
; CHECK: ret | |
%a = bitcast i8* %x to i32** | |
%b = load i32*, i32** %a | |
%c = ptrtoint i32* %b to i64 | |
ret i64 %c | |
} | |