Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/InstCombine/allocsize.ll

@@ -1,154 +0,0 @@
-; RUN: opt < %s -instcombine -S | FileCheck %s
-;
-; Test that instcombine folds allocsize function calls properly.
-; Dummy arguments are inserted to verify that allocsize is picking the right
-; args, and to prove that arbitrary unfoldable values don't interfere with
-; allocsize if they're not used by allocsize.
-
-declare i8* @my_malloc(i8*, i32) allocsize(1)
-declare i8* @my_calloc(i8*, i8*, i32, i32) allocsize(2, 3)
-
-; CHECK-LABEL: define void @test_malloc
-define void @test_malloc(i8** %p, i64* %r) {
-  %1 = call i8* @my_malloc(i8* null, i32 100)
-  store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  ; CHECK: store i64 100
-  store i64 %2, i64* %r, align 8
-  ret void
-}
-
-; CHECK-LABEL: define void @test_calloc
-define void @test_calloc(i8** %p, i64* %r) {
-  %1 = call i8* @my_calloc(i8* null, i8* null, i32 100, i32 5)
-  store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  ; CHECK: store i64 500
-  store i64 %2, i64* %r, align 8
-  ret void
-}
-
-; Failure cases with non-constant values...
-; CHECK-LABEL: define void @test_malloc_fails
-define void @test_malloc_fails(i8** %p, i64* %r, i32 %n) {
-  %1 = call i8* @my_malloc(i8* null, i32 %n)
-  store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  ; CHECK: @llvm.objectsize.i64.p0i8
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  store i64 %2, i64* %r, align 8
-  ret void
-}
-
-; CHECK-LABEL: define void @test_calloc_fails
-define void @test_calloc_fails(i8** %p, i64* %r, i32 %n) {
-  %1 = call i8* @my_calloc(i8* null, i8* null, i32 %n, i32 5)
-  store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  ; CHECK: @llvm.objectsize.i64.p0i8
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  store i64 %2, i64* %r, align 8
-
-
-  %3 = call i8* @my_calloc(i8* null, i8* null, i32 100, i32 %n)
-  store i8* %3, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  ; CHECK: @llvm.objectsize.i64.p0i8
-  %4 = call i64 @llvm.objectsize.i64.p0i8(i8* %3, i1 false)
-  store i64 %4, i64* %r, align 8
-  ret void
-}
-
-declare i8* @my_malloc_outofline(i8*, i32) #0
-declare i8* @my_calloc_outofline(i8*, i8*, i32, i32) #1
-
-; Verifying that out of line allocsize is parsed correctly
-; CHECK-LABEL: define void @test_outofline
-define void @test_outofline(i8** %p, i64* %r) {
-  %1 = call i8* @my_malloc_outofline(i8* null, i32 100)
-  store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  ; CHECK: store i64 100
-  store i64 %2, i64* %r, align 8
-
-
-  %3 = call i8* @my_calloc_outofline(i8* null, i8* null, i32 100, i32 5)
-  store i8* %3, i8** %p, align 8 ; To ensure objectsize isn't killed
-
-  %4 = call i64 @llvm.objectsize.i64.p0i8(i8* %3, i1 false)
-  ; CHECK: store i64 500
-  store i64 %4, i64* %r, align 8
-  ret void
-}
-
-declare i8* @my_malloc_i64(i8*, i64) #0
-declare i8* @my_tiny_calloc(i8*, i8*, i8, i8) #1
-declare i8* @my_varied_calloc(i8*, i8*, i32, i8) #1
-
-; CHECK-LABEL: define void @test_overflow
-define void @test_overflow(i8** %p, i32* %r) {
-  %r64 = bitcast i32* %r to i64*
-
-  ; (2**31 + 1) * 2 > 2**31. So overflow. Yay.
-  %big_malloc = call i8* @my_calloc(i8* null, i8* null, i32 2147483649, i32 2)
-  store i8* %big_malloc, i8** %p, align 8
-
-  ; CHECK: @llvm.objectsize
-  %1 = call i32 @llvm.objectsize.i32.p0i8(i8* %big_malloc, i1 false)
-  store i32 %1, i32* %r, align 4
-
-
-  %big_little_malloc = call i8* @my_tiny_calloc(i8* null, i8* null, i8 127, i8 4)
-  store i8* %big_little_malloc, i8** %p, align 8
-
-  ; CHECK: store i32 508
-  %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %big_little_malloc, i1 false)
-  store i32 %2, i32* %r, align 4
-
-
-  ; malloc(2**33)
-  %big_malloc_i64 = call i8* @my_malloc_i64(i8* null, i64 8589934592)
-  store i8* %big_malloc_i64, i8** %p, align 8
-
-  ; CHECK: @llvm.objectsize
-  %3 = call i32 @llvm.objectsize.i32.p0i8(i8* %big_malloc_i64, i1 false)
-  store i32 %3, i32* %r, align 4
-
-
-  %4 = call i64 @llvm.objectsize.i64.p0i8(i8* %big_malloc_i64, i1 false)
-  ; CHECK: store i64 8589934592
-  store i64 %4, i64* %r64, align 8
-
-
-  ; Just intended to ensure that we properly handle args of different types...
-  %varied_calloc = call i8* @my_varied_calloc(i8* null, i8* null, i32 1000, i8 5)
-  store i8* %varied_calloc, i8** %p, align 8
-
-  ; CHECK: store i32 5000
-  %5 = call i32 @llvm.objectsize.i32.p0i8(i8* %varied_calloc, i1 false)
-  store i32 %5, i32* %r, align 4
-
-  ret void
-}
-
-; CHECK-LABEL: define void @test_nobuiltin
-; We had a bug where `nobuiltin` would cause `allocsize` to be ignored in
-; @llvm.objectsize calculations.
-define void @test_nobuiltin(i8** %p, i64* %r) {
-  %1 = call i8* @my_malloc(i8* null, i32 100) nobuiltin
-  store i8* %1, i8** %p, align 8
-
-  %2 = call i64 @llvm.objectsize.i64.p0i8(i8* %1, i1 false)
-  ; CHECK: store i64 100
-  store i64 %2, i64* %r, align 8
-  ret void
-}
-
-attributes #0 = { allocsize(1) }
-attributes #1 = { allocsize(2, 3) }
-
-declare i32 @llvm.objectsize.i32.p0i8(i8*, i1)
-declare i64 @llvm.objectsize.i64.p0i8(i8*, i1)