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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -passes='move-auto-init' -verify-memoryssa | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i32 %x) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[BUFFER:%.*]] = alloca [80 x i32], align 16
; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 16 [[BUFFER]], i8 -86, i64 320, i1 false), !annotation [[META0:![0-9]+]]
; CHECK-NEXT: br label [[DO_BODY:%.*]]
; CHECK: do.body:
; CHECK-NEXT: [[X_ADDR_0:%.*]] = phi i32 [ [[X:%.*]], [[ENTRY:%.*]] ], [ [[DEC:%.*]], [[DO_COND:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [80 x i32], ptr [[BUFFER]], i64 0, i64 0
; CHECK-NEXT: call void @dump(ptr [[ARRAYIDX]])
; CHECK-NEXT: br label [[DO_COND]]
; CHECK: do.cond:
; CHECK-NEXT: [[DEC]] = add nsw i32 [[X_ADDR_0]], -1
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[X_ADDR_0]], 0
; CHECK-NEXT: br i1 [[TOBOOL]], label [[DO_BODY]], label [[DO_END:%.*]]
; CHECK: do.end:
; CHECK-NEXT: ret void
;
entry:
%buffer = alloca [80 x i32], align 16
call void @llvm.memset.p0.i64(ptr align 16 %buffer, i8 -86, i64 320, i1 false), !annotation !0
br label %do.body
do.body: ; preds = %do.cond, %entry
%x.addr.0 = phi i32 [ %x, %entry ], [ %dec, %do.cond ]
%arrayidx = getelementptr inbounds [80 x i32], ptr %buffer, i64 0, i64 0
call void @dump(ptr %arrayidx)
br label %do.cond
do.cond: ; preds = %do.body
%dec = add nsw i32 %x.addr.0, -1
%tobool = icmp ne i32 %x.addr.0, 0
br i1 %tobool, label %do.body, label %do.end
do.end: ; preds = %do.cond
ret void
}
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg)
declare void @dump(ptr )
define void @bar(i32 %x, i32 %y) {
; CHECK-LABEL: @bar(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[BUFFER:%.*]] = alloca [80 x i32], align 16
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[Y:%.*]], 0
; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 16 [[BUFFER]], i8 -86, i64 320, i1 false), !annotation [[META0]]
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[X:%.*]], [[Y]]
; CHECK-NEXT: br label [[DO_BODY:%.*]]
; CHECK: do.body:
; CHECK-NEXT: [[X_ADDR_0:%.*]] = phi i32 [ [[ADD]], [[IF_THEN]] ], [ [[DEC:%.*]], [[DO_COND:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [80 x i32], ptr [[BUFFER]], i64 0, i64 0
; CHECK-NEXT: call void @dump(ptr [[ARRAYIDX]])
; CHECK-NEXT: br label [[DO_COND]]
; CHECK: do.cond:
; CHECK-NEXT: [[DEC]] = add nsw i32 [[X_ADDR_0]], -1
; CHECK-NEXT: [[TOBOOL1:%.*]] = icmp ne i32 [[X_ADDR_0]], 0
; CHECK-NEXT: br i1 [[TOBOOL1]], label [[DO_BODY]], label [[DO_END:%.*]]
; CHECK: do.end:
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: ret void
;
entry:
%buffer = alloca [80 x i32], align 16
call void @llvm.memset.p0.i64(ptr align 16 %buffer, i8 -86, i64 320, i1 false), !annotation !0
%tobool = icmp ne i32 %y, 0
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
%add = add nsw i32 %x, %y
br label %do.body
do.body: ; preds = %do.cond, %if.then
%x.addr.0 = phi i32 [ %add, %if.then ], [ %dec, %do.cond ]
%arrayidx = getelementptr inbounds [80 x i32], ptr %buffer, i64 0, i64 0
call void @dump(ptr %arrayidx)
br label %do.cond
do.cond: ; preds = %do.body
%dec = add nsw i32 %x.addr.0, -1
%tobool1 = icmp ne i32 %x.addr.0, 0
br i1 %tobool1, label %do.body, label %do.end
do.end: ; preds = %do.cond
br label %if.end
if.end: ; preds = %do.end, %entry
ret void
}
declare void @dummy()
define void @unreachable_pred() {
; CHECK-LABEL: @unreachable_pred(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[P:%.*]] = alloca [2 x i16], i32 0, align 2
; CHECK-NEXT: store i32 0, ptr [[P]], align 2, !annotation [[META0]]
; CHECK-NEXT: br i1 true, label [[LOOP:%.*]], label [[USEBB:%.*]]
; CHECK: loop:
; CHECK-NEXT: call void @dummy()
; CHECK-NEXT: br label [[LOOP]]
; CHECK: a:
; CHECK-NEXT: br label [[LOOP]]
; CHECK: b:
; CHECK-NEXT: br label [[LOOP]]
; CHECK: usebb:
; CHECK-NEXT: [[USE_P:%.*]] = icmp ult ptr null, [[P]]
; CHECK-NEXT: ret void
;
entry:
%p = alloca [2 x i16], i32 0, align 2
store i32 0, ptr %p, align 2, !annotation !0
br i1 true, label %loop, label %usebb
loop:
call void @dummy()
br label %loop
a:
br label %loop
b:
br label %loop
usebb:
%use_p = icmp ult ptr null, %p
ret void
}
!0 = !{!"auto-init"}
|
