1; RUN: opt -instcombine -S < %s | FileCheck %s 2 3target datalayout = "p:32:32:32" 4 5 6define i64* @test1(i8* %x) { 7entry: 8; CHECK-LABEL: @test1( 9; CHECK: load i64, i64* 10; CHECK: ret 11 %a = bitcast i8* %x to i64* 12 %b = load i64, i64* %a 13 %c = inttoptr i64 %b to i64* 14 15 ret i64* %c 16} 17 18define i32* @test2(i8* %x) { 19entry: 20; CHECK-LABEL: @test2( 21; CHECK: load i32*, i32** 22; CHECK: ret 23 %a = bitcast i8* %x to i32* 24 %b = load i32, i32* %a 25 %c = inttoptr i32 %b to i32* 26 27 ret i32* %c 28} 29 30define i64* @test3(i8* %x) { 31entry: 32; CHECK-LABEL: @test3( 33; CHECK: load i64*, i64** 34; CHECK: ret 35 %a = bitcast i8* %x to i32* 36 %b = load i32, i32* %a 37 %c = inttoptr i32 %b to i64* 38 39 ret i64* %c 40} 41 42define i64 @test4(i8* %x) { 43entry: 44; CHECK-LABEL: @test4( 45; CHECK: load i32, i32* 46; CHECK: zext 47; CHECK: ret 48 %a = bitcast i8* %x to i64** 49 %b = load i64*, i64** %a 50 %c = ptrtoint i64* %b to i64 51 52 ret i64 %c 53} 54 55define i32 @test5(i8* %x) { 56entry: 57; CHECK-LABEL: @test5( 58; CHECK: load i32, i32* 59; CHECK: ret 60 %a = bitcast i8* %x to i32** 61 %b = load i32*, i32** %a 62 %c = ptrtoint i32* %b to i32 63 64 ret i32 %c 65} 66 67define i64 @test6(i8* %x) { 68entry: 69; CHECK-LABEL: @test6( 70; CHECK: load i32, i32* 71; CHECK: zext 72; CHECK: ret 73 %a = bitcast i8* %x to i32** 74 %b = load i32*, i32** %a 75 %c = ptrtoint i32* %b to i64 76 77 ret i64 %c 78} 79 80