| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -O3 -S -enable-new-pm=0 < %s | FileCheck %s --check-prefixes=ALL |
| ; RUN: opt -passes='default<O3>' -S < %s | FileCheck %s --check-prefixes=ALL |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; PR51092: SimplifyCFG might produce duplicate PHI's/select's. |
| ; We need to deduplicate them so that further transformations are possible. |
| define dso_local void @foo(i32* %in, i64 %lo, i64 %hi, i32 %ishi) #0 { |
| ; ALL-LABEL: @foo( |
| ; ALL-NEXT: entry: |
| ; ALL-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i32 [[ISHI:%.*]], 0 |
| ; ALL-NEXT: [[LO_HI:%.*]] = select i1 [[TOBOOL_NOT]], i64 [[LO:%.*]], i64 [[HI:%.*]] |
| ; ALL-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, i32* [[IN:%.*]], i64 [[LO_HI]] |
| ; ALL-NEXT: [[ARRAYVAL2:%.*]] = load i32, i32* [[ARRAYIDX1]], align 4 |
| ; ALL-NEXT: [[INC2:%.*]] = add nsw i32 [[ARRAYVAL2]], 1 |
| ; ALL-NEXT: store i32 [[INC2]], i32* [[ARRAYIDX1]], align 4 |
| ; ALL-NEXT: ret void |
| ; |
| entry: |
| %in.addr = alloca i32*, align 8 |
| %lo.addr = alloca i64, align 8 |
| %hi.addr = alloca i64, align 8 |
| %ishi.addr = alloca i32, align 4 |
| store i32* %in, i32** %in.addr, align 8 |
| store i64 %lo, i64* %lo.addr, align 8 |
| store i64 %hi, i64* %hi.addr, align 8 |
| store i32 %ishi, i32* %ishi.addr, align 4 |
| %ishi.reloaded = load i32, i32* %ishi.addr, align 4 |
| %tobool = icmp ne i32 %ishi.reloaded, 0 |
| br i1 %tobool, label %if.then, label %if.else |
| |
| if.then: |
| %in.reloaded = load i32*, i32** %in.addr, align 8 |
| %hi.reloaded = load i64, i64* %hi.addr, align 8 |
| %arrayidx = getelementptr inbounds i32, i32* %in.reloaded, i64 %hi.reloaded |
| %arrayval = load i32, i32* %arrayidx, align 4 |
| %inc = add nsw i32 %arrayval, 1 |
| store i32 %inc, i32* %arrayidx, align 4 |
| br label %if.end |
| |
| if.else: |
| %in.reloaded2 = load i32*, i32** %in.addr, align 8 |
| %lo.reloaded = load i64, i64* %lo.addr, align 8 |
| %arrayidx1 = getelementptr inbounds i32, i32* %in.reloaded2, i64 %lo.reloaded |
| %arrayval2 = load i32, i32* %arrayidx1, align 4 |
| %inc2 = add nsw i32 %arrayval2, 1 |
| store i32 %inc2, i32* %arrayidx1, align 4 |
| br label %if.end |
| |
| if.end: |
| ret void |
| } |