c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
79 lines
3.4 KiB
LLVM
79 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
|
|
; RUN: opt < %s -passes=inline -S | FileCheck %s
|
|
; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
|
|
|
|
%struct.a = type { i32, i32, i32, i32, i32 }
|
|
|
|
@g_var = global %struct.a { i32 1, i32 0, i32 0, i32 0, i32 0 }, align 8
|
|
@other_g_var = global %struct.a zeroinitializer, align 4
|
|
|
|
define void @callee(ptr noundef byval(%struct.a) align 8 %ptr) {
|
|
; CHECK-LABEL: define void @callee(
|
|
; CHECK-SAME: ptr noundef byval([[STRUCT_A:%.*]]) align 8 [[PTR:%.*]]) {
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[VAL:%.*]] = load i32, ptr [[PTR]], align 8
|
|
; CHECK-NEXT: [[DOTNOT:%.*]] = icmp eq i32 [[VAL]], 0
|
|
; CHECK-NEXT: br i1 [[DOTNOT]], label [[CHECK_POINTERS_ARE_EQUAL:%.*]], label [[STORE_PTR_IN_GVAR:%.*]]
|
|
; CHECK: store_ptr_in_gvar:
|
|
; CHECK-NEXT: store ptr [[PTR]], ptr @other_g_var, align 8
|
|
; CHECK-NEXT: br label [[CHECK_POINTERS_ARE_EQUAL]]
|
|
; CHECK: check_pointers_are_equal:
|
|
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[PTR]], [[STORE_PTR_IN_GVAR]] ], [ @other_g_var, [[ENTRY:%.*]] ]
|
|
; CHECK-NEXT: [[DOTNOT1:%.*]] = icmp eq ptr [[PHI]], [[PTR]]
|
|
; CHECK-NEXT: br i1 [[DOTNOT1]], label [[RETURN:%.*]], label [[ABORT:%.*]]
|
|
; CHECK: abort:
|
|
; CHECK-NEXT: call void @abort()
|
|
; CHECK-NEXT: unreachable
|
|
; CHECK: return:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
%val = load i32, ptr %ptr, align 8
|
|
%.not = icmp eq i32 %val, 0
|
|
br i1 %.not, label %check_pointers_are_equal, label %store_ptr_in_gvar
|
|
|
|
store_ptr_in_gvar: ; preds = %entry
|
|
store ptr %ptr, ptr @other_g_var, align 8
|
|
br label %check_pointers_are_equal
|
|
|
|
check_pointers_are_equal: ; preds = %store_ptr_in_gvar, %entry
|
|
%phi = phi ptr [ %ptr, %store_ptr_in_gvar ], [ @other_g_var, %entry ]
|
|
%.not1 = icmp eq ptr %phi, %ptr
|
|
br i1 %.not1, label %return, label %abort
|
|
|
|
abort: ; preds = %check_pointers_are_equal
|
|
call void @abort()
|
|
unreachable
|
|
|
|
return: ; preds = %check_pointers_are_equal
|
|
ret void
|
|
}
|
|
|
|
define i32 @main() {
|
|
; CHECK-LABEL: define i32 @main() {
|
|
; CHECK-NEXT: [[G_VAR:%.*]] = alloca [[STRUCT_A:%.*]], align 8
|
|
; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[G_VAR]])
|
|
; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[G_VAR]], ptr align 8 @g_var, i64 20, i1 false)
|
|
; CHECK-NEXT: [[VAL_I:%.*]] = load i32, ptr [[G_VAR]], align 8
|
|
; CHECK-NEXT: [[DOTNOT_I:%.*]] = icmp eq i32 [[VAL_I]], 0
|
|
; CHECK-NEXT: br i1 [[DOTNOT_I]], label [[CHECK_POINTERS_ARE_EQUAL_I:%.*]], label [[STORE_PTR_IN_GVAR_I:%.*]]
|
|
; CHECK: store_ptr_in_gvar.i:
|
|
; CHECK-NEXT: store ptr [[G_VAR]], ptr @other_g_var, align 8
|
|
; CHECK-NEXT: br label [[CHECK_POINTERS_ARE_EQUAL_I]]
|
|
; CHECK: check_pointers_are_equal.i:
|
|
; CHECK-NEXT: [[PHI_I:%.*]] = phi ptr [ [[G_VAR]], [[STORE_PTR_IN_GVAR_I]] ], [ @other_g_var, [[TMP0:%.*]] ]
|
|
; CHECK-NEXT: [[DOTNOT1_I:%.*]] = icmp eq ptr [[PHI_I]], [[G_VAR]]
|
|
; CHECK-NEXT: br i1 [[DOTNOT1_I]], label [[CALLEE_EXIT:%.*]], label [[ABORT_I:%.*]]
|
|
; CHECK: abort.i:
|
|
; CHECK-NEXT: call void @abort()
|
|
; CHECK-NEXT: unreachable
|
|
; CHECK: callee.exit:
|
|
; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[G_VAR]])
|
|
; CHECK-NEXT: ret i32 0
|
|
;
|
|
call void @callee(ptr noundef byval(%struct.a) align 8 @g_var)
|
|
ret i32 0
|
|
}
|
|
|
|
declare void @abort()
|