1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
2 ; In PR41658, argpromotion put an inalloca in a position that per the
3 ; calling convention is passed in a register. This test verifies that
4 ; we don't do that anymore. It also verifies that the combination of
5 ; globalopt and argpromotion is able to optimize the call safely.
7 ; RUN: opt -S -passes=argpromotion %s | FileCheck %s --check-prefix=ARGPROMOTION
8 ; RUN: opt -S -passes=globalopt,argpromotion %s | FileCheck %s --check-prefix=GLOBALOPT_ARGPROMOTION
10 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
11 target triple = "i386-pc-windows-msvc19.11.0"
13 %struct.a = type { i8 }
15 define internal x86_thiscallcc void @internalfun(ptr %this, ptr inalloca(<{ %struct.a }>)) {
16 ; ARGPROMOTION-LABEL: define {{[^@]+}}@internalfun
17 ; ARGPROMOTION-SAME: (ptr [[THIS:%.*]], ptr inalloca(<{ [[STRUCT_A:%.*]] }>) [[TMP0:%.*]]) {
18 ; ARGPROMOTION-NEXT: entry:
19 ; ARGPROMOTION-NEXT: [[A:%.*]] = getelementptr inbounds <{ [[STRUCT_A]] }>, ptr [[TMP0]], i32 0, i32 0
20 ; ARGPROMOTION-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A]] }>, align 4
21 ; ARGPROMOTION-NEXT: [[TMP1:%.*]] = getelementptr inbounds <{ [[STRUCT_A]] }>, ptr [[ARGMEM]], i32 0, i32 0
22 ; ARGPROMOTION-NEXT: [[CALL:%.*]] = call x86_thiscallcc ptr @copy_ctor(ptr [[TMP1]], ptr dereferenceable(1) [[A]])
23 ; ARGPROMOTION-NEXT: call void @ext(ptr inalloca(<{ [[STRUCT_A]] }>) [[ARGMEM]])
24 ; ARGPROMOTION-NEXT: ret void
26 ; GLOBALOPT_ARGPROMOTION-LABEL: define {{[^@]+}}@internalfun
27 ; GLOBALOPT_ARGPROMOTION-SAME: (ptr [[TMP0:%.*]]) unnamed_addr {
28 ; GLOBALOPT_ARGPROMOTION-NEXT: entry:
29 ; GLOBALOPT_ARGPROMOTION-NEXT: [[A:%.*]] = getelementptr inbounds <{ [[STRUCT_A:%.*]] }>, ptr [[TMP0]], i32 0, i32 0
30 ; GLOBALOPT_ARGPROMOTION-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A]] }>, align 4
31 ; GLOBALOPT_ARGPROMOTION-NEXT: [[TMP1:%.*]] = getelementptr inbounds <{ [[STRUCT_A]] }>, ptr [[ARGMEM]], i32 0, i32 0
32 ; GLOBALOPT_ARGPROMOTION-NEXT: [[CALL:%.*]] = call x86_thiscallcc ptr @copy_ctor(ptr [[TMP1]], ptr dereferenceable(1) [[A]])
33 ; GLOBALOPT_ARGPROMOTION-NEXT: call void @ext(ptr inalloca(<{ [[STRUCT_A]] }>) [[ARGMEM]])
34 ; GLOBALOPT_ARGPROMOTION-NEXT: ret void
37 %a = getelementptr inbounds <{ %struct.a }>, ptr %0, i32 0, i32 0
38 %argmem = alloca inalloca <{ %struct.a }>, align 4
39 %1 = getelementptr inbounds <{ %struct.a }>, ptr %argmem, i32 0, i32 0
40 %call = call x86_thiscallcc ptr @copy_ctor(ptr %1, ptr dereferenceable(1) %a)
41 call void @ext(ptr inalloca(<{ %struct.a }>) %argmem)
45 ; This is here to ensure @internalfun is live.
46 define void @exportedfun(ptr %a) {
47 ; ARGPROMOTION-LABEL: define {{[^@]+}}@exportedfun
48 ; ARGPROMOTION-SAME: (ptr [[A:%.*]]) {
49 ; ARGPROMOTION-NEXT: [[INALLOCA_SAVE:%.*]] = tail call ptr @llvm.stacksave.p0()
50 ; ARGPROMOTION-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A:%.*]] }>, align 4
51 ; ARGPROMOTION-NEXT: call x86_thiscallcc void @internalfun(ptr [[A]], ptr inalloca(<{ [[STRUCT_A]] }>) [[ARGMEM]])
52 ; ARGPROMOTION-NEXT: call void @llvm.stackrestore.p0(ptr [[INALLOCA_SAVE]])
53 ; ARGPROMOTION-NEXT: ret void
55 ; GLOBALOPT_ARGPROMOTION-LABEL: define {{[^@]+}}@exportedfun
56 ; GLOBALOPT_ARGPROMOTION-SAME: (ptr [[A:%.*]]) local_unnamed_addr {
57 ; GLOBALOPT_ARGPROMOTION-NEXT: [[INALLOCA_SAVE:%.*]] = tail call ptr @llvm.stacksave.p0()
58 ; GLOBALOPT_ARGPROMOTION-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A:%.*]] }>, align 4
59 ; GLOBALOPT_ARGPROMOTION-NEXT: call fastcc void @internalfun(ptr [[ARGMEM]])
60 ; GLOBALOPT_ARGPROMOTION-NEXT: call void @llvm.stackrestore.p0(ptr [[INALLOCA_SAVE]])
61 ; GLOBALOPT_ARGPROMOTION-NEXT: ret void
63 %inalloca.save = tail call ptr @llvm.stacksave()
64 %argmem = alloca inalloca <{ %struct.a }>, align 4
65 call x86_thiscallcc void @internalfun(ptr %a, ptr inalloca(<{ %struct.a }>) %argmem)
66 call void @llvm.stackrestore(ptr %inalloca.save)
70 declare x86_thiscallcc ptr @copy_ctor(ptr returned, ptr dereferenceable(1))
71 declare void @ext(ptr inalloca(<{ %struct.a }>))
72 declare ptr @llvm.stacksave()
73 declare void @llvm.stackrestore(ptr)