/
load-bitcast64.ll
101 lines (86 loc) · 2.44 KB
/
load-bitcast64.ll
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; 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
}