forked from OSchip/llvm-project
102 lines
2.4 KiB
LLVM
102 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -instcombine -S < %s | FileCheck %s
|
|
|
|
target datalayout = "p:64:64:64-i64:32:32"
|
|
|
|
|
|
define i64* @test1(i8* %x) {
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8* [[X:%.*]] to i64**
|
|
; CHECK-NEXT: [[B1:%.*]] = load i64*, i64** [[TMP0]], align 4
|
|
; CHECK-NEXT: ret i64* [[B1]]
|
|
;
|
|
entry:
|
|
%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) {
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[A:%.*]] = bitcast i8* [[X:%.*]] to i32*
|
|
; CHECK-NEXT: [[B:%.*]] = load i32, i32* [[A]], align 4
|
|
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[B]] to i64
|
|
; CHECK-NEXT: [[C:%.*]] = inttoptr i64 [[TMP0]] to i32*
|
|
; CHECK-NEXT: ret i32* [[C]]
|
|
;
|
|
entry:
|
|
%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) {
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[A:%.*]] = bitcast i8* [[X:%.*]] to i32*
|
|
; CHECK-NEXT: [[B:%.*]] = load i32, i32* [[A]], align 4
|
|
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[B]] to i64
|
|
; CHECK-NEXT: [[C:%.*]] = inttoptr i64 [[TMP0]] to i64*
|
|
; CHECK-NEXT: ret i64* [[C]]
|
|
;
|
|
entry:
|
|
%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) {
|
|
; CHECK-LABEL: @test4(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8* [[X:%.*]] to i64*
|
|
; CHECK-NEXT: [[B1:%.*]] = load i64, i64* [[TMP0]], align 8
|
|
; CHECK-NEXT: ret i64 [[B1]]
|
|
;
|
|
entry:
|
|
%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) {
|
|
; CHECK-LABEL: @test5(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8* [[X:%.*]] to i64*
|
|
; CHECK-NEXT: [[B1:%.*]] = load i64, i64* [[TMP0]], align 8
|
|
; CHECK-NEXT: [[C:%.*]] = trunc i64 [[B1]] to i32
|
|
; CHECK-NEXT: ret i32 [[C]]
|
|
;
|
|
entry:
|
|
%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) {
|
|
; CHECK-LABEL: @test6(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8* [[X:%.*]] to i64*
|
|
; CHECK-NEXT: [[B1:%.*]] = load i64, i64* [[TMP0]], align 8
|
|
; CHECK-NEXT: ret i64 [[B1]]
|
|
;
|
|
entry:
|
|
%a = bitcast i8* %x to i32**
|
|
%b = load i32*, i32** %a
|
|
%c = ptrtoint i32* %b to i64
|
|
|
|
ret i64 %c
|
|
}
|
|
|