[llvm] 28c53b3 - [LowerConstantIntrinsics] Add test for objectsize of malloc (NFC)
Nikita Popov via llvm-commits
llvm-commits at lists.llvm.org
Fri Mar 18 06:50:41 PDT 2022
Author: Nikita Popov
Date: 2022-03-18T14:50:33+01:00
New Revision: 28c53b384dcf9c17feca18cab70e06d6fea0b0fb
URL: https://github.com/llvm/llvm-project/commit/28c53b384dcf9c17feca18cab70e06d6fea0b0fb
DIFF: https://github.com/llvm/llvm-project/commit/28c53b384dcf9c17feca18cab70e06d6fea0b0fb.diff
LOG: [LowerConstantIntrinsics] Add test for objectsize of malloc (NFC)
This is currently not folded with a plain -lower-constant-intrinsics
invocation, because TLI is an optional dependency.
Added:
Modified:
llvm/test/Transforms/LowerConstantIntrinsics/objectsize_basic.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/LowerConstantIntrinsics/objectsize_basic.ll b/llvm/test/Transforms/LowerConstantIntrinsics/objectsize_basic.ll
index 6d5e5080f13c7..f6ba114d61f6b 100644
--- a/llvm/test/Transforms/LowerConstantIntrinsics/objectsize_basic.ll
+++ b/llvm/test/Transforms/LowerConstantIntrinsics/objectsize_basic.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -lower-constant-intrinsics -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
@@ -7,92 +8,110 @@ declare i64 @llvm.objectsize.i64(i8*, i1, i1, i1) nounwind readonly
declare i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)*, i1, i1, i1) nounwind readonly
declare void @llvm.trap() nounwind
-; CHECK-LABEL: @test1(
; objectsize should fold to a constant, which causes the branch to fold to an
; uncond branch.
define i32 @test1(i8* %ptr) nounwind ssp noredzone align 2 {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[T:%.*]]
+; CHECK: T:
+; CHECK-NEXT: ret i32 4
+;
entry:
%0 = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false, i1 false, i1 false)
%1 = icmp ugt i64 %0, 3
br i1 %1, label %T, label %trap
-; CHECK: entry:
-; CHECK-NOT: label %trap
trap: ; preds = %0, %entry
tail call void @llvm.trap() noreturn nounwind
unreachable
T:
-; CHECK: ret i32 4
ret i32 4
}
-; CHECK-LABEL: @test_objectsize_null_flag(
define i64 @test_objectsize_null_flag(i8* %ptr) {
+; CHECK-LABEL: @test_objectsize_null_flag(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 -1
+;
entry:
- ; CHECK: ret i64 -1
%0 = tail call i64 @llvm.objectsize.i64(i8* null, i1 false, i1 true, i1 false)
ret i64 %0
}
-; CHECK-LABEL: @test_objectsize_null_flag_min(
define i64 @test_objectsize_null_flag_min(i8* %ptr) {
+; CHECK-LABEL: @test_objectsize_null_flag_min(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 0
+;
entry:
- ; CHECK: ret i64 0
%0 = tail call i64 @llvm.objectsize.i64(i8* null, i1 true, i1 true, i1 false)
ret i64 %0
}
; Test foldable null pointers because we evaluate them with non-exact modes in
; CodeGenPrepare.
-; CHECK-LABEL: @test_objectsize_null_flag_noas0(
define i64 @test_objectsize_null_flag_noas0() {
+; CHECK-LABEL: @test_objectsize_null_flag_noas0(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 -1
+;
entry:
- ; CHECK: ret i64 -1
%0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 false,
- i1 true, i1 false)
+ i1 true, i1 false)
ret i64 %0
}
-; CHECK-LABEL: @test_objectsize_null_flag_min_noas0(
define i64 @test_objectsize_null_flag_min_noas0() {
+; CHECK-LABEL: @test_objectsize_null_flag_min_noas0(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 0
+;
entry:
- ; CHECK: ret i64 0
%0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 true,
- i1 true, i1 false)
+ i1 true, i1 false)
ret i64 %0
}
-; CHECK-LABEL: @test_objectsize_null_known_flag_noas0
define i64 @test_objectsize_null_known_flag_noas0() {
+; CHECK-LABEL: @test_objectsize_null_known_flag_noas0(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 -1
+;
entry:
- ; CHECK: ret i64 -1
%0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 false,
- i1 false, i1 false)
+ i1 false, i1 false)
ret i64 %0
}
-; CHECK-LABEL: @test_objectsize_null_known_flag_min_noas0
define i64 @test_objectsize_null_known_flag_min_noas0() {
+; CHECK-LABEL: @test_objectsize_null_known_flag_min_noas0(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 0
+;
entry:
- ; CHECK: ret i64 0
%0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 true,
- i1 false, i1 false)
+ i1 false, i1 false)
ret i64 %0
}
-; CHECK-LABEL: @test_objectsize_byval_arg(
-; CHECK: ret i64 42
define i64 @test_objectsize_byval_arg([42 x i8]* byval([42 x i8]) %ptr) {
+; CHECK-LABEL: @test_objectsize_byval_arg(
+; CHECK-NEXT: [[CAST:%.*]] = bitcast [42 x i8]* [[PTR:%.*]] to i8*
+; CHECK-NEXT: ret i64 42
+;
%cast = bitcast [42 x i8]* %ptr to i8*
%size = tail call i64 @llvm.objectsize.i64(i8* %cast, i1 true, i1 false, i1 false)
ret i64 %size
}
-; CHECK-LABEL: @test_objectsize_byref_arg(
-; CHECK: ret i64 42
define i64 @test_objectsize_byref_arg([42 x i8]* byref([42 x i8]) %ptr) {
+; CHECK-LABEL: @test_objectsize_byref_arg(
+; CHECK-NEXT: [[CAST:%.*]] = bitcast [42 x i8]* [[PTR:%.*]] to i8*
+; CHECK-NEXT: ret i64 42
+;
%cast = bitcast [42 x i8]* %ptr to i8*
%size = tail call i64 @llvm.objectsize.i64(i8* %cast, i1 true, i1 false, i1 false)
ret i64 %size
@@ -119,3 +138,15 @@ define i64 @vla_pointer_size_mismatch(i42 %x) {
%objsize = call i64 @llvm.objectsize.i64(i8* %G1, i1 false, i1 true, i1 true)
ret i64 %objsize
}
+
+declare i8* @malloc(i64)
+
+define i64 @test_objectsize_malloc() {
+; CHECK-LABEL: @test_objectsize_malloc(
+; CHECK-NEXT: [[PTR:%.*]] = call i8* @malloc(i64 16)
+; CHECK-NEXT: ret i64 -1
+;
+ %ptr = call i8* @malloc(i64 16)
+ %objsize = call i64 @llvm.objectsize.i64(i8* %ptr, i1 false, i1 true, i1 true)
+ ret i64 %objsize
+}
More information about the llvm-commits
mailing list