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llvm-for-llvmta/test/Analysis/StackSafetyAnalysis/lifetime.ll

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2022-04-25 10:02:23 +02:00
; RUN: opt -passes='print<stack-lifetime><may>' -disable-output %s 2>&1 | FileCheck %s --check-prefixes=CHECK,MAY
; RUN: opt -passes='print<stack-lifetime><must>' -disable-output %s 2>&1 | FileCheck %s --check-prefixes=CHECK,MUST
define void @f() {
; CHECK-LABEL: define void @f()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
; CHECK: %y = alloca i32, align 4
; CHECK-NEXT: Alive: <>
%z = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
%z0 = bitcast i32* %z to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <z>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x z>
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <z>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <y z>
call void @capture32(i32* %y)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <z>
call void @capture32(i32* %z)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <>
ret void
}
define void @no_markers() {
; CHECK-LABEL: define void @no_markers()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <y>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x y>
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <y>
call void @capture32(i32* %y)
ret void
}
define void @g() {
; CHECK-LABEL: define void @g()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
%z = alloca i64, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
%z0 = bitcast i64* %z to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <x y>
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <y>
call void @capture32(i32* %y)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <z>
call void @capture64(i64* %z)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <>
ret void
; CHECK: ret void
; CHECK-NEXT: Alive: <>
}
define void @h() {
; CHECK-LABEL: define void @h()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 16
; CHECK: %x = alloca i32, align 16
; CHECK-NEXT: Alive: <>
%z = alloca i64, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
%z0 = bitcast i64* %z to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <x y>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <x y z>
call void @capture32(i32* %x)
call void @capture32(i32* %y)
call void @capture64(i64* %z)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <y z>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <z>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %z0)
; CHECK-NEXT: Alive: <>
ret void
}
define void @i(i1 zeroext %a, i1 zeroext %b) {
; CHECK-LABEL: define void @i(i1 zeroext %a, i1 zeroext %b)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x1 = alloca i64, align 8
%x2 = alloca i64, align 8
%y = alloca i64, align 8
%y1 = alloca i64, align 8
%y2 = alloca i64, align 8
%z = alloca i64, align 8
%z1 = alloca i64, align 8
%z2 = alloca i64, align 8
%0 = bitcast i64* %x1 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <x1>
%1 = bitcast i64* %x2 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <x1 x2>
call void @capture64(i64* nonnull %x1)
call void @capture64(i64* nonnull %x2)
br i1 %a, label %if.then, label %if.else4
; CHECK: br i1 %a, label %if.then, label %if.else4
; CHECK-NEXT: Alive: <x1 x2>
if.then: ; preds = %entry
; CHECK: if.then:
; CHECK-NEXT: Alive: <x1 x2>
%2 = bitcast i64* %y to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %2)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %2)
; CHECK-NEXT: Alive: <x1 x2 y>
call void @capture64(i64* nonnull %y)
br i1 %b, label %if.then3, label %if.else
if.then3: ; preds = %if.then
; CHECK: if.then3:
; CHECK-NEXT: Alive: <x1 x2 y>
%3 = bitcast i64* %y1 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %3)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %3)
; CHECK-NEXT: Alive: <x1 x2 y y1>
call void @capture64(i64* nonnull %y1)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %3)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %3)
; CHECK-NEXT: Alive: <x1 x2 y>
br label %if.end
if.else: ; preds = %if.then
; CHECK: if.else:
; CHECK-NEXT: Alive: <x1 x2 y>
%4 = bitcast i64* %y2 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %4)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %4)
; CHECK-NEXT: Alive: <x1 x2 y y2>
call void @capture64(i64* nonnull %y2)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %4)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %4)
; CHECK-NEXT: Alive: <x1 x2 y>
br label %if.end
if.end: ; preds = %if.else, %if.then3
; CHECK: if.end:
; CHECK-NEXT: Alive: <x1 x2 y>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %2)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %2)
; CHECK-NEXT: Alive: <x1 x2>
br label %if.end9
if.else4: ; preds = %entry
; CHECK: if.else4:
; CHECK-NEXT: Alive: <x1 x2>
%5 = bitcast i64* %z to i8*
; CHECK: %5 = bitcast i64* %z to i8*
; CHECK-NEXT: Alive: <x1 x2>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %5)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %5)
; CHECK-NEXT: Alive: <x1 x2 z>
call void @capture64(i64* nonnull %z)
br i1 %b, label %if.then6, label %if.else7
if.then6: ; preds = %if.else4
; CHECK: if.then6:
; CHECK-NEXT: Alive: <x1 x2 z>
%6 = bitcast i64* %z1 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %6)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %6)
; CHECK-NEXT: Alive: <x1 x2 z z1>
call void @capture64(i64* nonnull %z1)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %6)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %6)
; CHECK-NEXT: Alive: <x1 x2 z>
br label %if.end8
if.else7: ; preds = %if.else4
; CHECK: if.else7:
; CHECK-NEXT: Alive: <x1 x2 z>
%7 = bitcast i64* %z2 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %7)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %7)
; CHECK-NEXT: Alive: <x1 x2 z z2>
call void @capture64(i64* nonnull %z2)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %7)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %7)
; CHECK-NEXT: Alive: <x1 x2 z>
br label %if.end8
if.end8: ; preds = %if.else7, %if.then6
; CHECK: if.end8:
; CHECK-NEXT: Alive: <x1 x2 z>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %5)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %5)
; CHECK-NEXT: Alive: <x1 x2>
br label %if.end9
if.end9: ; preds = %if.end8, %if.end
; CHECK: if.end9:
; CHECK-NEXT: Alive: <x1 x2>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <x1>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <>
ret void
}
define void @no_merge1(i1 %d) {
; CHECK-LABEL: define void @no_merge1(i1 %d)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @capture32(i32* %x)
br i1 %d, label %bb2, label %bb3
bb2: ; preds = %entry
; CHECK: bb2:
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <x y>
call void @capture32(i32* %y)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <>
ret void
bb3: ; preds = %entry
; CHECK: bb3:
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <>
ret void
}
define void @merge1(i1 %d) {
; CHECK-LABEL: define void @merge1(i1 %d)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <>
br i1 %d, label %bb2, label %bb3
bb2: ; preds = %entry
; CHECK: bb2:
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <y>
call void @capture32(i32* %y)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <>
ret void
bb3: ; preds = %entry
; CHECK: bb3:
; CHECK-NEXT: Alive: <>
ret void
}
define void @merge2_noend(i1 %d) {
; CHECK-LABEL: define void @merge2_noend(i1 %d)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <>
br i1 %d, label %bb2, label %bb3
bb2: ; preds = %entry
; CHECK: bb2:
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <y>
call void @capture32(i32* %y)
ret void
bb3: ; preds = %entry
; CHECK: bb3:
; CHECK-NEXT: Alive: <>
ret void
}
define void @merge3_noend(i1 %d) {
; CHECK-LABEL: define void @merge3_noend(i1 %d)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
call void @capture32(i32* %x)
br i1 %d, label %bb2, label %bb3
bb2: ; preds = %entry
; CHECK: bb2:
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <y>
call void @capture32(i32* %y)
ret void
bb3: ; preds = %entry
; CHECK: bb3:
; CHECK-NEXT: Alive: <x>
ret void
}
define void @nomerge4_nostart(i1 %d) {
; CHECK-LABEL: define void @nomerge4_nostart(i1 %d)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <x>
%x = alloca i32, align 4
%y = alloca i32, align 4
%x0 = bitcast i32* %x to i8*
%y0 = bitcast i32* %y to i8*
call void @capture32(i32* %x)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %x0)
; CHECK-NEXT: Alive: <x>
br i1 %d, label %bb2, label %bb3
bb2: ; preds = %entry
; CHECK: bb2:
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %y0)
; CHECK-NEXT: Alive: <x y>
call void @capture32(i32* %y)
ret void
bb3: ; preds = %entry
; CHECK: bb3:
; CHECK-NEXT: Alive: <x>
ret void
}
define void @array_merge() {
; CHECK-LABEL: define void @array_merge()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%A.i1 = alloca [100 x i32], align 4
%B.i2 = alloca [100 x i32], align 4
%A.i = alloca [100 x i32], align 4
%B.i = alloca [100 x i32], align 4
%0 = bitcast [100 x i32]* %A.i to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <A.i>
%1 = bitcast [100 x i32]* %B.i to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <A.i B.i>
call void @capture100x32([100 x i32]* %A.i)
; CHECK: call void @capture100x32([100 x i32]* %A.i)
; CHECK-NEXT: Alive: <A.i B.i>
call void @capture100x32([100 x i32]* %B.i)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <B.i>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <>
%2 = bitcast [100 x i32]* %A.i1 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %2)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %2)
; CHECK-NEXT: Alive: <A.i1>
%3 = bitcast [100 x i32]* %B.i2 to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %3)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %3)
; CHECK-NEXT: Alive: <A.i1 B.i2>
call void @capture100x32([100 x i32]* %A.i1)
call void @capture100x32([100 x i32]* %B.i2)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %2)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %2)
; CHECK-NEXT: Alive: <B.i2>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %3)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %3)
; CHECK-NEXT: Alive: <>
ret void
}
define void @myCall_pr15707() {
; CHECK-LABEL: define void @myCall_pr15707()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%buf1 = alloca i8, i32 100000, align 16
%buf2 = alloca i8, i32 100000, align 16
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf1)
; CHECK-NEXT: Alive: <buf1>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %buf1)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %buf1)
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf1)
; CHECK-NEXT: Alive: <buf1>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf2)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %buf2)
; CHECK-NEXT: Alive: <buf1 buf2>
call void @capture8(i8* %buf1)
call void @capture8(i8* %buf2)
ret void
}
define void @bad_range() {
; CHECK-LABEL: define void @bad_range()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <A.i1 B.i2>
%A.i1 = alloca [100 x i32], align 4
%B.i2 = alloca [100 x i32], align 4
%A.i = alloca [100 x i32], align 4
%B.i = alloca [100 x i32], align 4
%0 = bitcast [100 x i32]* %A.i to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <A.i A.i1 B.i2>
%1 = bitcast [100 x i32]* %B.i to i8*
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <A.i A.i1 B.i B.i2>
call void @capture100x32([100 x i32]* %A.i)
call void @capture100x32([100 x i32]* %B.i)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
; CHECK-NEXT: Alive: <A.i1 B.i B.i2>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %1)
; CHECK-NEXT: Alive: <A.i1 B.i2>
br label %block2
block2: ; preds = %entry
; CHECK: block2:
; CHECK-NEXT: Alive: <A.i1 B.i2>
call void @capture100x32([100 x i32]* %A.i)
call void @capture100x32([100 x i32]* %B.i)
ret void
}
%struct.Klass = type { i32, i32 }
define i32 @shady_range(i32 %argc, i8** nocapture %argv) {
; CHECK-LABEL: define i32 @shady_range(i32 %argc, i8** nocapture %argv)
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%a.i = alloca [4 x %struct.Klass], align 16
%b.i = alloca [4 x %struct.Klass], align 16
%a8 = bitcast [4 x %struct.Klass]* %a.i to i8*
%b8 = bitcast [4 x %struct.Klass]* %b.i to i8*
%z2 = getelementptr inbounds [4 x %struct.Klass], [4 x %struct.Klass]* %a.i, i64 0, i64 0, i32 0
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %a8)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %a8)
; CHECK-NEXT: Alive: <a.i>
call void @llvm.lifetime.start.p0i8(i64 -1, i8* %b8)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 -1, i8* %b8)
; CHECK-NEXT: Alive: <a.i b.i>
call void @capture8(i8* %a8)
call void @capture8(i8* %b8)
%z3 = load i32, i32* %z2, align 16
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %a8)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %a8)
; CHECK-NEXT: Alive: <b.i>
call void @llvm.lifetime.end.p0i8(i64 -1, i8* %b8)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 -1, i8* %b8)
; CHECK-NEXT: Alive: <>
ret i32 %z3
}
define void @end_loop() {
; CHECK-LABEL: define void @end_loop()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i8, align 4
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <x>
br label %l2
l2: ; preds = %l2, %entry
; CHECK: l2:
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
call void @capture8(i8* %x)
call void @llvm.lifetime.end.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <>
br label %l2
}
define void @start_loop() {
; CHECK-LABEL: define void @start_loop()
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i8, align 4
%y = alloca i8, align 4
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <x>
br label %l2
l2: ; preds = %l2, %entry
; CHECK: l2:
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK-NEXT: Alive: <x y>
call void @capture8(i8* %y)
call void @llvm.lifetime.end.p0i8(i64 1, i8* %y)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 1, i8* %y)
; CHECK-NEXT: Alive: <x>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <x>
call void @capture8(i8* %x)
br label %l2
}
%struct.char_array = type { [500 x i8] }
define dso_local void @gep_test(i32 %cond) {
; CHECK-LABEL: define dso_local void @gep_test
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%a = alloca %struct.char_array, align 8
%b = alloca %struct.char_array, align 8
%tobool.not = icmp eq i32 %cond, 0
br i1 %tobool.not, label %if.else, label %if.then
if.then: ; preds = %entry
; CHECK: if.then:
; CHECK-NEXT: Alive: <>
%0 = getelementptr inbounds %struct.char_array, %struct.char_array* %a, i64 0, i32 0, i64 0
call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %0)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %0)
; CHECK-NEXT: Alive: <a>
tail call void @capture8(i8* %0)
call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %0)
; CHECK-NEXT: Alive: <>
br label %if.end
if.else: ; preds = %entry
; CHECK: if.else:
; CHECK-NEXT: Alive: <>
%1 = getelementptr inbounds %struct.char_array, %struct.char_array* %b, i64 0, i32 0, i64 0
call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %1)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 500, i8* nonnull %1)
; CHECK-NEXT: Alive: <b>
tail call void @capture8(i8* %1)
call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 500, i8* nonnull %1)
; CHECK-NEXT: Alive: <>
br label %if.end
if.end: ; preds = %if.else, %if.then
; CHECK: if.end:
; CHECK-NEXT: Alive: <>
ret void
}
define void @if_must(i1 %a) {
; CHECK-LABEL: define void @if_must
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i8, align 4
%y = alloca i8, align 4
br i1 %a, label %if.then, label %if.else
; CHECK: br i1 %a, label %if.then, label %if.else
; CHECK-NEXT: Alive: <>
if.then:
; CHECK: if.then:
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK-NEXT: Alive: <y>
br label %if.end
; CHECK: br label %if.end
; CHECK-NEXT: Alive: <y>
if.else:
; CHECK: if.else:
; CHECK-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK-NEXT: Alive: <y>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <x y>
br label %if.end
; CHECK: br label %if.end
; CHECK-NEXT: Alive: <x y>
if.end:
; CHECK: if.end:
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <y>
ret void
}
define void @unreachable() {
; CHECK-LABEL: define void @unreachable
entry:
; CHECK: entry:
; CHECK-NEXT: Alive: <>
%x = alloca i8, align 4
%y = alloca i8, align 4
call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %y)
; CHECK-NEXT: Alive: <y>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK-NEXT: Alive: <x y>
br label %end
; CHECK: br label %end
; CHECK-NEXT: Alive: <x y>
dead:
; CHECK: dead:
; CHECK-NOT: Alive:
call void @llvm.lifetime.start.p0i8(i64 4, i8* %y)
br label %end
; CHECK: br label %end
; CHECK-NOT: Alive:
end:
; CHECK: end:
; CHECK-NEXT: Alive: <x y>
ret void
}
define void @non_alloca(i8* %p) {
; CHECK-LABEL: define void @non_alloca
entry:
; CHECK: entry:
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
%x = alloca i8, align 4
%y = alloca i8, align 4
call void @llvm.lifetime.start.p0i8(i64 4, i8* %p)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 4, i8* %p)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 4, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 4, i8* %x)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.end.p0i8(i64 4, i8* %p)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 4, i8* %p)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
ret void
}
define void @select_alloca(i1 %v) {
; CHECK-LABEL: define void @select_alloca
entry:
; CHECK: entry:
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
%x = alloca i8, align 4
%y = alloca i8, align 4
%cxcy = select i1 %v, i8* %x, i8* %y
call void @llvm.lifetime.start.p0i8(i64 1, i8* %cxcy)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %cxcy)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.start.p0i8(i64 1, i8* %x)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.end.p0i8(i64 1, i8* %x)
; CHECK: call void @llvm.lifetime.end.p0i8(i64 1, i8* %x)
; MAY-NEXT: Alive: <x y>
; MUST-NEXT: Alive: <>
ret void
}
define void @alloca_offset() {
; CHECK-LABEL: define void @alloca_offset
entry:
; CHECK: entry:
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
%x = alloca [5 x i32], align 4
%x2 = getelementptr [5 x i32], [5 x i32]* %x, i64 0, i64 1
call void @llvm.lifetime.start.p0i32(i64 20, i32* %x2)
; CHECK: call void @llvm.lifetime.start.p0i32(i64 20, i32* %x2)
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.end.p0i32(i64 20, i32* %x2)
; CHECK: call void @llvm.lifetime.end.p0i32(i64 20, i32* %x2)
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
ret void
}
define void @alloca_size() {
; CHECK-LABEL: define void @alloca_size
entry:
; CHECK: entry:
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
%x = alloca [5 x i32], align 4
%x2 = getelementptr [5 x i32], [5 x i32]* %x, i64 0, i64 0
call void @llvm.lifetime.start.p0i32(i64 15, i32* %x2)
; CHECK: call void @llvm.lifetime.start.p0i32(i64 15, i32* %x2)
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
call void @llvm.lifetime.end.p0i32(i64 15, i32* %x2)
; CHECK: call void @llvm.lifetime.end.p0i32(i64 15, i32* %x2)
; MAY-NEXT: Alive: <x>
; MUST-NEXT: Alive: <>
ret void
}
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
declare void @llvm.lifetime.start.p0i32(i64, i32* nocapture)
declare void @llvm.lifetime.end.p0i32(i64, i32* nocapture)
declare void @capture8(i8*)
declare void @capture32(i32*)
declare void @capture64(i64*)
declare void @capture100x32([100 x i32]*)