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